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Introducing Asteroid 2004 MN4

Numerous readers wrote in with bits about a potential asteroid collision: "The recently discovered asteroid 2004 MN4 is currently listed as having a 1/233 chance of hitting the Earth. It is 420 m across and if it strikes the Earth it will release an energy of 1,900 Megatons of TNT (the largest nuclear weapon ever detonated, Tsar Bomba had a yield of only 50 Megatons). It is also the only asteroid that currently has a Torino scale value of 2." So, in summary, there's a 1-in-233 chance of the worst disaster in recorded history happening on April 13, 2029, and a 232-in-233 chance of nothing happening. Have a nice day! Update: 12/24 22:14 GMT by M : The rock is now rated a 4 on the Torino scale, or a 1-in-62 chance of impact.

89 of 633 comments (clear)

  1. Friday the 13th by Castaa · · Score: 5, Funny

    Not to alarm people further, but April 13, 2029 is also a Friday the 13th!

    --
    Chew: You Nexus, huh? I design your eyes.
    Roy: Chew, if only you could see what I've seen with your eyes.
    1. Re:Friday the 13th by dvdave · · Score: 5, Funny

      Plus, if you add 2+0+2+9 = 13! We're doomed!

    2. Re:Friday the 13th by bckrispi · · Score: 4, Funny
      April 14, 2029.

      Somewhere, on the surface of Mars

      Where's the "Kaboom"? There was supposed to be an Earth-shattering "Kaboom"!

      --
      Xenon, where's my money? -Borno
    3. Re:Friday the 13th by HellSpam · · Score: 2, Funny

      Oh no! And in wingdings (at least in Word 2003) MN4 is a Bomb, Skull and Glasses (respectivly)! Which means look, this thing is going to kill you! We're goners for sure.

    4. Re:Friday the 13th by TimTheFoolMan · · Score: 2

      The theology behind this is called "propitiation." It's sort of a deified version of the "whipping boy," who takes our punishment for us.

      In OT theology, a devout Jew would present a blood sacrifice to God to satisfy God's justice for the sins committed by that person. In NT theology, Jesus is the "spotless lamb," and is therefore becomes not just A sacrifice, but THE sacrifice.

      I've oversimplified it a fair amount, and there are varying viewpoints, but that's reasonably accurate. E-mail MySlashdotUserID@yahoo.com if you want to follow up on it.

      Tim

  2. In 2029, it won't be our problem. by Anonymous Coward · · Score: 5, Funny

    The Machines will have to worry about it.

  3. Lets start by Nemesis099 · · Score: 5, Funny

    Well its close enough time to start looting!

  4. Maybe by b00tleg · · Score: 2, Funny

    Hopefully Bruce Willis will still be around...

    1. Re:Maybe by Samus · · Score: 2, Funny

      He'll probably be president, so won't be available to save us.

      --
      In Republican America phones tap you.
    2. Re:Maybe by Hatta · · Score: 4, Funny

      We'd have better luck either moving the astroid or abandoning Earth.

      If we route emergency power through the deflector dish, we should be able to create a warp bubble that would temporaril lower the gravitaional constant around the asteroid. That way we could use the ships tractor beam to slightly alter the asteroids trajectory. It won't be much, but I think it will be enough.

      --
      Give me Classic Slashdot or give me death!
    3. Re:Maybe by damiam · · Score: 2, Insightful
      Instead of one rock, there would be a bunch of them

      Many rocks have many times the surface area of a single rock, so much more of them would be burned up in the atmosphere.

      --
      It's hard to be religious when certain people are never incinerated by bolts of lightning.
    4. Re:Maybe by Doctor+Crumb · · Score: 2, Funny

      And then put a giant trampoline there! boing!

    5. Re:Maybe by steve_bryan · · Score: 3, Insightful

      "maybe they boil off a significant part of the oceans as they cool down"

      Why maybe when all the numbers are available online? Ten million megaton of TNT equivalent of energy is enough energy to vaporize 2 x 10^16 kg water. The Atlantic Ocean by itself has 3 x 10^20 kg of water. That is about 1 part in 10,000 of just the second largest ocean.

      That's a lot of water but a very small fraction of the total.

    6. Re:Maybe by the_mad_poster · · Score: 2, Funny

      Because it's the biggest coastal city on the eastern shoreline. The only other significant options are Miami and Boston (which is just as likely to get hit with any catastrophic tsunami that hits NYC), and neither one of them has the brand appeal of New York.

      --
      Alito: A vote for Alito is a punch in the eye to put that bitch back in her place!
    7. Re:Maybe by CrackedButter · · Score: 2, Funny

      Like a balloon and something bad happens...

    8. Re:Maybe by jonadab · · Score: 2, Informative

      > All this 'If you break it up, it doesn't help' is just nonsense. Especially
      > with a rock this size, which is about enough to flatten a fairly large city,
      > if I'm understanding this correctly. If it's going to hit, we probably won't
      > learn where exactly until the last approach, at which point it's too late
      > to evacuate Calcutta or wherever.

      If it's large enough to flatten a large city, you don't want it to hit
      anywhere, not even in the middle of the Pacific.

      However, 25 years is a long time; we can afford to just *watch* it for fifteen
      years, and that still leaves ten years more, *plenty* of time to alter its
      orbit if necessary so that it doesn't hit. (All this malarke about blowing
      it to pieces with nukes is just so much movie-plot nonsense. It would be much
      easier and safer to mount a few rockets on it and push it off course so it
      misses. Especially if we have several years to work out the details.)

      Honestly, something that we see coming 25 years ahead of time isn't going
      to be scary unless it's *entirely* too large to move (i.e., sized more like
      a small planet than an asteroid), which seems unlikely -- and this little
      bitty thing isn't even close to that category. If you want to get yourself
      all worked up over the possibility of a large asteroid plowing into the
      Earth, think about one coming from a strange angle far out of the plane of
      the eccliptic so that we don't notice it until a few hours before it hits.

      --
      Cut that out, or I will ship you to Norilsk in a box.
  5. Nothing to worry about? by Richie1984 · · Score: 4, Interesting

    I don't really think there's too much point in getting concerned just yet. There are many asteroids that we can't track until they've already passed us, so worrying about a 1 in roughly 300 chance of an asteroid hitting us in 30 years time isn't really a major problem yet. Personally, I'd like to see some sort of government funding for machinery to detect a greater number of asteroids which are potentially on a course for us. Otherwise, our fate is just in the hands of luck.

    --
    I'm not stressed. I'm just terribly, terribly alert.
    1. Re:Nothing to worry about? by Richie1984 · · Score: 2, Interesting

      Just like the previous thousands of years?

      Yes, but we're entering an age where we have, or will probably soon have, the technology to not only detect these threats, but also to destroy them. Just because it hasn't happened before in the course of recorded human history, doesn't mean we can be complacent.

      --
      I'm not stressed. I'm just terribly, terribly alert.
    2. Re:Nothing to worry about? by AbbyNormal · · Score: 2, Interesting

      Also, isn't this estimation based on the "perfect" scenario? Ie. No outside forces being exerted on the rock before it hits us? Even though 30 years is a drop in the universe's bucket in terms of time, there is a lot that could possibly alter the course.

      Oh, and Frankly, I welcome our new Rock Based over lords.

      --
      Sig it.
    3. Re:Nothing to worry about? by temojen · · Score: 3, Insightful

      If we start now, we have 24 years to figgure out how to deflect it's orbit. If it's not on a collision course after all, then we still have learned how to deflect a large asteroid.

    4. Re:Nothing to worry about? by mahesh_gharat · · Score: 2, Interesting

      What are we going to do after detecting a asteroid having a probability of 1 heating us?
      Nothing.

      So lets first develope some strategy/technique to avoid such a disaster and then start detecting the probable hits. Putting money in detecting first will waste of money and time.

      We will be in more panick situation if we know there is something which is going to hit us but we can't do anything about it.

    5. Re:Nothing to worry about? by anthony_dipierro · · Score: 2, Funny

      I don't really think there's too much point in getting concerned just yet.

      In other words, you can expect the UN to start work on a treaty and the United States to refuse to sign it.

    6. Re:Nothing to worry about? by ajs · · Score: 2, Informative

      Even though 30 years is a drop in the universe's bucket in terms of time, there is a lot that could possibly alter the course.

      Other than human interference? No, not really. The chances of its running into some other body are probably far less than its running into the earth, and it's not like there's a lot of commuter traffic to get in the way. Space is rather empty -- pardon the cliché.

    7. Re:Nothing to worry about? by maxverb · · Score: 2, Informative

      NeoDys is running a page on this asteroid, and at present they have raised the odds to 1 in 60, with a Torino scale value of 4 (not 2). Obviously they are refining the orbit as they get more data, so the value may change again. But, since I first saw this story, the odds have been 1/300, then 1/233, then 1/125, and now 1/60. Hmmm. This isn't on the news anywhere else yet, as fas as I can tell. Here's the link: http://newton.dm.unipi.it/cgi-bin/neodys/neoibo?ri skpage:0;main

    8. Re:Nothing to worry about? by m50d · · Score: 2, Interesting

      Any other forces are just as likely to redirect it away from us as towards us

      --
      I am trolling
    9. Re:Nothing to worry about? by Daniel+Dvorkin · · Score: 2, Insightful

      junk science (n.): Any science which comes to conclusions which have political implications with which the person using the phrase disagrees.

      --
      The correlation between ignorance of statistics and using "correlation is not causation" as an argument is close to 1.
  6. Like a car on a turn... by Cytlid · · Score: 4, Funny

    ...maybe if we all lean to the left...

    --
    FLR
    1. Re:Like a car on a turn... by Wandering+Wombat · · Score: 2, Funny

      You Democrat-hippy, don't tell me how to vote.

      --
      I like to place meaningful quotes in my sig, so people will know that I know what meaningful quotes are.
    2. Re:Like a car on a turn... by Daniel+Dvorkin · · Score: 5, Funny

      Well, at this point we're leaning too far to the right. Maybe if we all just straighten up?

      --
      The correlation between ignorance of statistics and using "correlation is not causation" as an argument is close to 1.
  7. Thanks for the breakdown ... by Ralconte · · Score: 5, Interesting

    Thanks for all the numbers, but using this page is more fun ... (no HTML, it's short enough to cut and paste)
    http://www.lpl.arizona.edu/impacteffects/

    1. Re:Thanks for the breakdown ... by Phrogman · · Score: 4, Informative

      Oh thats great fun. I calculated the results for a 1320m asteriod made of dense rock arriving at 17m/s on a 45 degree angle and impacting on land for someone standing 100km (62.5 miles) away:

      ----
      Your Inputs:
      Distance from Impact: 100.00 km = 62.10 miles
      Projectile Diameter: 1320.00 m = 4329.60 ft = 0.82 miles
      Projectile Density: 3000 kg/m3
      Impact Velocity: 17.00 km/s = 10.56 miles/s
      Impact Angle: 45 degrees
      Target Density: 2500 kg/m3
      Target Type: Sedimentary Rock

      Energy:
      Energy before atmospheric entry: 5.22 x 1020 Joules = 1.25 x 105 MegaTons TNT
      The average interval between impacts of this size somewhere on Earth during the last 4 billion years is 9.2 x 105years

      Major Global Changes:
      The Earth is not strongly disturbed by the impact and loses negligible mass.
      The impact does not make a noticeable change in the Earth's rotation period or the tilt of its axis.
      The impact does not shift the Earth's orbit noticeably.

      Crater Dimensions:
      What does this mean?

      Transient Crater Diameter: 13.1 km = 8.12 miles
      Transient Crater Depth: 4.63 km = 2.87 miles

      Final Crater Diameter: 18.4 km = 11.4 miles
      Final Crater Depth: 0.711 km = 0.441 miles

      The crater formed is a complex crater.
      The volume of the target melted or vaporized is 3.22 km3 = 0.772 miles3
      Roughly half the melt remains in the crater , where its average thickness is 24 meters = 78.6 feet

      Thermal Radiation:
      What does this mean?

      Time for maximum radiation: 0.95 seconds after impact

      Visible fireball radius: 15.2 km = 9.45 miles
      The fireball appears 34.6 times larger than the sun
      Thermal Exposure: 2.29 x 106 Joules/m2
      Duration of Irradiation: 20.8 seconds
      Radiant flux (relative to the sun): 110

      Effects of Thermal Radiation:

      Much of the body suffers second degree burns

      Deciduous trees ignite

      Seismic Effects:
      What does this mean?

      The major seismic shaking will arrive at approximately 20 seconds.
      Richter Scale Magnitude: 8.0
      Mercalli Scale Intensity at a distance of 100 km:

      VII. Damage negligible in buildings of good design and construction; slight to moderate in well-built ordinary structures; considerable damage in poorly built or badly designed structures; some chimneys broken.

      VIII. Damage slight in specially designed structures; considerable damage in ordinary substantial buildings with partial collapse. Damage great in poorly built structures. Fall of chimneys, factory stacks, columns, monuments, walls. Heavy furniture overturned.

      Ejecta:
      What does this mean?

      The ejecta will arrive approximately 144 seconds after the impact.
      Average Ejecta Thickness: 26.1 cm = 10.3 inches
      Mean Fragment Diameter: 11.8 cm = 4.65 inches

      Air Blast:
      What does this mean?

      The air blast will arrive at approximately 303 seconds.
      Peak Overpressure: 157000 Pa = 1.57 bars = 22.3 psi
      Max wind velocity: 242 m/s = 540 mph
      Sound Intensity: 104 dB (May cause ear pain)
      Damage Description:

      Multistory wall-bearing buildings will collapse.

      Wood frame buildings will almost completely collapse.

      Highway truss bridges will collapse.

      Glass windows will shatter.

      Up to 90 percent of trees blown down; remainder stripped of branches and leaves.

      --
      "The first time I got drunk, I got married. The second time I bought a chimpanzee, after that I stayed sober" Arian Seid
    2. Re:Thanks for the breakdown ... by Barto · · Score: 3, Insightful

      Asteroid 2004 MN4 is a 440m diameter, ~3500kg/m^3 (unless I've got my maths wrong), 12.59km/s impact velocity asteroid. Impacting on a 45? angle on a continental shelf, at 100km away buildings would shake, glass windows would shatter, chimneys shanty towns would collapse, ejecta would arrive in scattered fragments.

      At 10km away, everything gets blown up by the earthquake, ejecta and blast wave. So, if it DOES hit, you'll probably be ok unless you happen to live close to the impact site.

    3. Re:Thanks for the breakdown ... by brassman · · Score: 3, Insightful

      I ran the calculation at the same site, but using the size of the one we're supposedly talking about, porous rock instead of dense rock or iron, and I dropped it into the mid-Atlantic, the earth being 74% covered by water after all.

      It broke up, there was no fireball, and I could make more impact overpressure (I chose to be 1,800 km from the impact site) by clapping my hands real hard.

      Then again, an impact like "mine" happens every 4,000 years or so.

      --
      "Ain't no right way to do a wrong thing."
  8. D&D odds perspective by Castaa · · Score: 4, Funny

    To put these odds in terms us slashdotters will understand, the odds that this asteroid will hit earth are better than the odds of rolling a '20' with a twenty-sided die 2 times in a row.

    --
    Chew: You Nexus, huh? I design your eyes.
    Roy: Chew, if only you could see what I've seen with your eyes.
    1. Re:D&D odds perspective by GoofyBoy · · Score: 4, Funny

      So its the same odds as those two wood sword wielding kobolds both hitting my level 10 fighter?

      --
      The surprise isn't how often we make bad choices; the surprise is how seldom they defeat us.
  9. And the worst part? by mogglestein · · Score: 2, Funny

    We have to wait 24 years ... damn I'll be 54 !!

  10. Not a Chance! by 6800 · · Score: 2, Interesting

    Nothing happens by chance. Chance is simply a statiscal tool to rate probability of things observable. If you disagree, please explain to me by what power comes chances causation?

  11. John Young strikes again. by jabex · · Score: 3, Interesting

    Well, John Young (from a previous story about the risks of being a single planet species) is going to have a field day with this.
    http://space.balettie.com/Young.html

    Guess it's time to update those "how likely we are to die" stats.

    Although maybe not, considering this isn't of the 1km and above weight class.

    --
    Like Teddy with an elephant gun.
  12. Any moment now. . . by Ohreally_factor · · Score: 2, Funny

    Any moment now, Michael will be receiving a request/subpoena from Apple legal, asking him to divulge the identities of the "numerous readers" that leaked this highly confidential information about "Asteroid".

    --
    It's not offtopic, dumbass. It's orthogonal.
  13. Select surivivors NOW by spywarearcata.com · · Score: 5, Funny

    Clearly we need to start now to develop deep habitable mines to ensure the survival of our way of life. We must carefully select a few hundred thousand of those who should be protected at all costs.

    A special committee would have to be appointed to study and recommend the criteria to be employed, but off-hand, I should say that in addition to the factors of youth, health, sexual fertility, intelligence, and a cross-section of necessary skills, it would be absolutely vital that our top government and military men be included, to impart the required principles of leadership and tradition.

    Naturally, they would breed prodigiously. There would be much time and little to do. With the proper breeding techniques, and starting with a ratio of, say, ten women to each man, I should estimate the progeny of the original group of 200,000 would emerge a hundred years later as well over a hundred million. Naturally the group would have to continually engage in enlarging the original living space.

    1. Re:Select surivivors NOW by spywarearcata.com · · Score: 2, Interesting

      Muffley: But look here doctor, wouldn't this nucleus of survivors be so grief stricken and anguished that they'd, well, envy the dead and not want to go on living?

      Strangelove: No sir... [right arm rolls his wheelchair backwards.] Excuse me. [struggles with wayward right arm, ultimately subduing it with a beating from his left.] Also when... when they go down into the mine everyone would still be alive. There would be no shocking memories, and the prevailing emotion will be ne of nostalgia for those left behind, combined with a spirit of bold curiosity for the adventure ahead! Ahhhh! [Right hand reflexes into Nazi salute. He pulls it back into his lap and beats it again. Gloved hand attempts to strangle him.]

    2. Re:Select surivivors NOW by node+3 · · Score: 4, Funny

      Well now what happened is, one of the asteroids, it had a sort of, well it went a little funny in the head. You know. Just a little... funny. And uh, it went and did a silly thing. Well, I'll tell you what it did, it took a trajectory... to hit the planet. Well let me finish, Dimitri...

    3. Re:Select surivivors NOW by LaCosaNostradamus · · Score: 2, Insightful

      Despite the humorous tone (regardless, you were modded Humorous), this is a good idea at its core. Humanity has made NO preparations to survive a Chixculub-sized event. Picking out 1 million people from the world's 6100 million, and then making some preparations to move all those people quickly to secured sites, is a better move for preserving the Human race than just doing nothing. The sites could be put to dual-usage to not waste resources (since they could be otherwise sitting unused but maintained, for thousands of years), and as time passes "the million" will steadily die off and have inductions of new members.

      --
      [You have a stable society when some nut guns down a schoolyard and the law doesn't change.]
    4. Re:Select surivivors NOW by Anonymous Coward · · Score: 5, Funny

      Actually I think this is a great idea. Here's what we do:

      1) Tell the White House that an asteroid may hit the earth imminently. Ask them to produce a list of everyone who's survival is essential to the future of mankind.

      2) Build a giant cave/fallout shelter for them.

      3) Announce that the asteroid is about to hit.

      4) When everyone on the list is in...seal the door.

  14. uhm... by Dorothy+86 · · Score: 2, Interesting
    anyone else notice how many times they made sure to say it was not of public concern?

    /me puts on tinfoil hat

    a 1/233 chance of it hitting earth sounds like fairly good odds to me, considering odds of other asteroids... I want to be concerend for another 24 (close enough) years...

  15. saved in the nick of time by Camel+Pilot · · Score: 5, Funny

    what a relief at least we wont have to go thru the year of "the end of unix time".

  16. Darwin Awards, 2029 by node+3 · · Score: 3, Interesting

    Yes! I now have a 1/233 chance of predicting the Darwin Awards for 2029.

    You see, the smart will evacuate the target impact area, and the "Award Winners" will flock to the area for the event.

    Damn, I just hope *I* can resist going... after all, it *will* be an impressive show. We're talking 1.9 gigatons!

  17. More than 1 disaster position? by LordEd · · Score: 2, Funny

    If you look at the animation, it shows the one possible earth hit position, but to me, it looks like 2 or 3 of those very near earth positions have the potential to hit the moon (then factor a gravitational swing around the earth...)

    Pool anybody? Off the moon, bank off North America, left ocean!

  18. Best quote from the article by cmburns69 · · Score: 4, Funny

    "This is not a problem for anyone and it shouldn't be a concern to anyone, but whenever we post one of these things and ... somebody gets ahold of it, it just gets crazy" ...From the CNN version

    Along with the obligatory Simpsons quote..

    Kent Brockman: Professor, without knowing precisely what the danger is, would you say it's time for our viewers to crack each other's heads open and feast on the goo inside?
    Professor: Yes I would, Kent.

    --
    Online Starcraft RPG? At
    Dietary fiber is like asynchronous IO-- Non-blocking!
  19. 23 years till it's actually a story by voidptr · · Score: 4, Funny

    Just think of how many times slashdot can repeat this story in the next two decades!

    --
    This .sig for unofficial government use only. Official use subject to $500 fine.
  20. Re:What is the Point? by bigberk · · Score: 5, Interesting
    What is the point of posts (and news items, etc.) like this?
    While the population obsesses about rather small threats (terrorism, nuclear bombs, SARS, west nile virus) people tend to ignore major threats like, oh I don't know, human near-extinction in several decades. Sit and think about the odds given and you should find it extremely unnerving, unless you have no sense of probabilities. On the order of 1/100 or 1/1000 are not reassuring odds. And the scale of the event is enormous.

    It's a problem of motivating people to non-immediate problems. Like environmental issues, these are not things that engage us now. OTOH terrorism and SARS puts people in an acute panic. With something like asteroids, environmental damage people have to start working on problems now even though there appears to be no good reason to do so.

    So getting back to your question, why post about this and why make people aware of a looming future threat? Because hopefully, physicists, mathematicians, and engineers out there realize that this is quite important and might take part in coming up with solutions that could (yes) save earth. And maybe people will make the connection that humans striving for space travel, exploration, and colonization of space is also an activity that can save our ass -- rather than waste precious precious money.

    And everyone else can realize, damn, life may well be shorter than we all expect, and be grateful that they and everyone else they know is still alive.
  21. Ever Wonder... by arakon · · Score: 3, Interesting

    about where and how they come up with these 'odds'?

    Would this be one of those instances of '95% of all statistics are made up'?

    I mean, it seeams if he could get a somewhat reasonable graps at the trajectory and distance of the asteroid thy could get a fair guess about probability of impact and location of impact, but how do they arbitrarily convert a guess into a number ratio?

    I guess I'd just like to see the math on how they come up with these numbers.

    --
    "If I were bound by all laws everywhere I'm sure I would have committed a capital crime somewhere."
    1. Re:Ever Wonder... by Jerf · · Score: 4, Informative

      I guess I'd just like to see the math on how they come up with these numbers.

      Nobody's stopping you; it's not a secret. Go get it.

      But get ready for some heavy lifting; as you dig into it you'll very quickly realize why they didn't try to put any in a popular news article.

      I'm not too up on it myself but you can start with phase spaces, I think, though that hardly touches the real fun, which is the probabilistic aspect of determining the path of an object through all of the influences of the solar system... while I'm not up on the details I do know they don't use naive formulations of that problem, they've got some powerful and brain-bending tricks to prevent the estimate from diffusing too quickly.

  22. The problem by eclectro · · Score: 2, Insightful


    The problem is that there are at least 232 OTHER asteroids that have only a 1/233 chance of hitting earth.

    --
    Take the cheese to sickbay, the doctor should see it as soon as possible - B'Elanna Torres, "Learning Curve"
    1. Re:The problem by Vaevictis666 · · Score: 2, Informative

      Bah, given that they are independant, and each has a 232/233 chance of missing earth, that gives a (232/233)^233 or 36.7% chance of all of them missing.

  23. Re:According to google define by LnxAddct · · Score: 2, Informative

    I think what he was getting at was that its already been determined if we'll be hit, we just don't know and can't know the answer yet. We can only judge it to a certain accuracy, giving us a certain probability. In reality though there is a definite answer that we just don't know. However, the grandparent is wrong in that when you get to the quantum level, things really are impossible to figure oout.
    Regards,
    Steve

  24. Ben Affleck is our solution by sessamoid · · Score: 4, Funny
    It sounds like we (or the machines) will need a huge bomb to alter its course. I propose that Ben Affleck and J-Lo make just one more movie together. Then we can launch that at the asteroid. I'm guessing it explodes with enough force to vaporize the asteroid completely.

    Gigli was almost enough to destroy the U.S. by itself. An asteroid should be no problem.

    --
    "No, no, no. Don't tug on that. You never know what it might be attached to."
  25. Hero inventory in 2029... by zacnboat · · Score: 2

    Bruce Willis - aka: "Harry S. Stamper" in "Armageddon", and "Corben Dallas" in "The Fifth Element" - The man who defeated a world ending asteroid by blowing it up in space, and the man who defeated a huge ball of ultimate evil from colliding with the earth and taking over the universe... will be 74 in 2029.
    [TOO OLD]

    Mark Hamil - aka: "Luke Skywalker" - One of the people responsible for defeating the evil emperor and destroying not one but TWO death stars... will be 78 years old in 2029
    [TOO MARK HAMIL--I mean OLD]

    Arnold Schwarzenegger - aka: "Major 'Dutch' Schaeffer" - The man who defeated the predator and governates the state of california... will be 82 years old in 2029.
    [Definitely way TOO Arrrrnold and OLD.]

    I just don't know where to turn now... all the big heroes I grew up watching are getting old. Hollywood seriously needs to get to work before 2029 or we're all doomed!

    --
    "We're gonna need a bigger boat." - Jaws
  26. Try not to still be a virgin. by Fruvous · · Score: 2, Funny

    That gives all of us Slashdot readers about 25 years to lose our virginity, it might be tight...

    --
    This is one of those witty signatures that you'll remember.
  27. Geographical location? by mnmn · · Score: 2, Insightful

    Which part of the earth will it hit anyway. I dont think it will directly affect the whole world, beside the atmospheric affects, which can be dealt with, as opposed to dealing with the asteroid directly.. for example starting growing mushrooms...

    I'd wanna emigrate to the country directly opposite of the impact, start a business and buy farms (critical for survival). Also important will be buying of important real estate, for example if its hitting the oceans, buy higher land areas in Bangladesh and start building apartments. Heck just buy the land, let others build apartments close to doomsday.

    Shares of companies researching food sources that do not require sunlight, or low light will jump...

    --
    "Give orange me give eat orange me eat orange give me eat orange give me you." -Nim Chimpsky
  28. Calculate the impact for yourself. by mikeophile · · Score: 2, Insightful

    Use the info from this site over here to make your own doomsday scenario with this chunk of happy fun rock.

  29. Why don't we know if it will hit? by danshapiro · · Score: 2, Insightful
    We are clearly capable of tracking things through space with very, very low margins of error. For example, we predict the trajectories of space probes through space decades in advance with very tiny margins of error.

    Now, I realize that it's one thing to track an object from earth, and another to track something that's a light year or farther away. But it would still appear to be a straightforward task: get enough pictures that you can tell where it is and where it's going, and interpolate.

    So what's the bottleneck here? Poor imaging? Not enough photos? Bad angles? Something else?

    --
    This posting is provided "AS IS" with no warranties, and confers no rights.
    1. Re:Why don't we know if it will hit? by droleary · · Score: 2, Informative

      We are clearly capable of tracking things through space with very, very low margins of error.

      To know where something is now doesn't mean you can predict where it will be in the future. Not within a "space is big" margin of error.

      So what's the bottleneck here?

      The very thing that makes it want to hit us: gravity. That is, the Three-Body Problem, an 3 is at the lower end of influences that come into play over the next 25 years.

    2. Re:Why don't we know if it will hit? by at_18 · · Score: 4, Informative

      So what's the bottleneck here? Poor imaging?

      Yes. The image on the telescope is not a theoretical point, but has a certain diameter depending on the telescope diameter, atmospheric distortion, ccd resolution, etc. So you cannot pinpoint the asteroid position precisely, but only give a bounding box.

      Combining multiple observations will give you more data, and you can start narrowing down the estimate. Right now the error on the position, projected to year 2029, is about 200 times bigger than the diameter of Earth, so we say that there's a 1/200 probability of impact. A planet is a very tiny target.

      When the precision is sufficient to say that, for example, the asteroid will pass by the left side, it will suddenly drop to zero. If it is actually going to impact the Earth, the probability will slowly going up until it will reach 1.

    3. Re:Why don't we know if it will hit? by frakir · · Score: 2, Informative

      Even shape of that thing can influence its trajectory because it may reflect less light on one side then on the other... and those tiny forces add up over 20+ years.

      There are so many factors we don't know after 2-3 sightings of such a meteor to make more accurate prediction.

  30. Thank Goodness- A New Date for the Apocalypse by gadlaw · · Score: 2, Funny

    I don't know about anybody else but I've missed the impending doom and sense of anticipation since we've missed all our other dates at an apocalypse. The various dooms from the Millenium were very entertaining. Now I have another date to circle on the calendar. Yeah.

    --
    Enjoy your Karma, after all you earned it. Feel your Karma Joe, feel it burn.
  31. way of life? by DreadSpoon · · Score: 2, Insightful

    How will putting people in deep habitable mines protect our "way of life" ?

    Last I checked, my way of life definitely does *not* include deep habitable mines. It doesn't even have any shallow habitable mines. I can't remember any kind of mine, actually. Pretty mine-free over here.

  32. I *like* those odds! by LittleGuy · · Score: 2, Funny

    So, in summary, there's a 1-in-233 chance of the worst disaster in recorded history happening on April 13, 2029, and a 232-in-233 chance of nothing happening. Have a nice day!

    I'll be on the moon, gesturing, "Missed it by *that* much...."

    --
    Mod Karma -1: I sed bad wurds. If I cep my mouf shut, I wud be at riyses.
  33. Margins of error - could be 1 in 23 by genixia · · Score: 2
    From the NASA page linked...

    Impact Probability
    The probability that the tabulated impact will occur. The probability computation is complex and depends on a number of assumptions that are difficult to verify. For these reasons the stated probability can easily be inaccurate by a factor of a few, and occasionally by a factor of ten or more.


    So the odds of disaster could be as high as 1 in 23. Fortunately they could also be as low as 1 in 2320.

    Along those lines, the estimated mass could be out by a factor of three too. And the size by a factor of 2.
  34. Updated to a Torino value of 4. Uh oh. by mc6809e · · Score: 5, Informative

    Am I seeing this right?

    It looks like it's up to a 4, now.

    1. Re:Updated to a Torino value of 4. Uh oh. by maxverb · · Score: 4, Interesting

      Yes, this was just put out a little while ago. That's a record. Wonder why it isn't on the news? I am listening to NPR's Science Friday right now; it must be a taped show, because they aren't saying anything yet. 4! Damn.

    2. Re:Updated to a Torino value of 4. Uh oh. by japaget · · Score: 5, Informative

      Yes, you are. It has been updated to include observations made through last night at 8:55 pm EST, 5:55 pm PST. And the impact probability has gone up to 1 in 62.

    3. Re:Updated to a Torino value of 4. Uh oh. by dnixon112 · · Score: 2, Insightful

      CNN has reported on their website about the initial warning that pegged the threat on the Torino scale at 2. But they haven't updated it yet for the increased threat. Probably they're waiting for the next round of observations before making any doomsday type claims and looking silly when nothing happens.

      CNN Article

  35. In numerology... by SunPin · · Score: 4, Funny

    You need to take one more step.

    2 + 0 + 2 + 9 = 13

    1 + 3 = 4

    See? No big deal.:)

    --
    Laws are for people with no friends.
    1. Re:In numerology... by Xenex · · Score: 4, Funny
      2 + 0 + 2 + 9 = 13

      1 + 3 = 4

      See? No big deal.:)
      But the rock is now rated a 4 on the Torino scale! We're doomed!
    2. Re:In numerology... by MicklePickle · · Score: 2, Funny

      Er, yes it still is. The Chinese believe 4 is unlucky. Even to the extent that they don't have level 4s in buildings.

      So there!

      --
      -- main(s){printf(s="main(s){printf(s=%c%s%c,34,s,34) ;}",34,s,34);} $p='$p=%c%s%
    3. Re:In numerology... by dos+equis · · Score: 4, Informative

      Not so fast!

      The number 4 in Japanese is "shi" (U+56DB), but "shi" also means death (U+6B7B)!
      It's just as unlucky as 13 in western culture, and more specific about our fate.

  36. torino is now at 4 by Johnny+Mnemonic · · Score: 2, Informative

    The Torino scale for this impact is now rated as a "4"--about 1% chance of hitting us, an upgrade from previous estimations. Still not likely, but now more likely.

    --

    --
    $tar -xvf .sig.tar
  37. Capture? by Rob+Carr · · Score: 4, Interesting
    I wonder what kind of asteroid this is. If it's not a pile of rubble and if it's high in metals, it might actually be worth manuvering it into Earth orbit. The bulk of it would provide shelter during solar storms, with mines providing both living space and manufacturing materials. Even non-metalics would be useful - there's got to be some way to use them as reaction mass.

    Now, there would be some problems. First, as you change the orbit, there's the chance that you'll chage the target country from Outer Bleen to Inner Bleen, upsetting the inhabitants. Then, as you manuver the rock, you're going to probably annoy someone else. The ability to direct such a rock would constitute a "weapon of mass destruction."

    I'm guessing positioning the thing for "aerobraking" in the Earth's atmosphere would make some folks nervous, too.

    Ok, so this wouldn't be a project where you'd want to mix up your feet and meters or have someone say "oopsie!"

    The shame is, humans don't have the brains or organization to take advantage of this opportunity. If this hunk of space junk is going to hit the Earth, I'm not sure we will move it in time. We certainly can move it. I just don't think we'll get our act together.

    I wonder who'll be the first to suggest that an impact will be a good thing since the dust may greatly reduce global warming?

    --
    This sig seemed like a good idea at the time....
  38. Re:Phobias by Aluion · · Score: 2, Interesting
    Yes, and it's known as Hippopotomonstrosesquippedaliophobia, and sometimes known as Sesquipedalophobia.

    By the way, it is 36 letters long.

  39. Re:but where? by TimToady · · Score: 2, Insightful

    Well, you can figure it out. The impact time is roughly 9:30 UTC which is about noon in Alaska. It's coming from outside the earth's orbit, so whatever is on the other side from Alaska is the target. I make it somewhere between Iraq and India, give or take half a planet.

  40. yes, but in Japanese... by calculadoru · · Score: 3, Interesting

    ...the number 4 is pronounced the same way as death (which is why Japanese people hate living on the 4th floor etc).
    so we are doomed after all :)

    --
    The power of accurate observation is commonly called cynicism by those who have not got it. -- G.B. Shaw
  41. not that calamitous by PMoonlite · · Score: 2, Insightful

    I'd like to compare the danger reported here with that of the recent earthquake in Australia.

    Asteroid: It is 420 m across and if it strikes the Earth it will release an energy of 1,900 Megatons of TNT (the largest nuclear weapon ever detonated, Tsar Bomba had a yield of only 50 Megatons).

    Earthquake: Geoscience Australia said an earthquake measuring 8.6 on the Richter scale releases energy equivalent to about 10,000 atom bombs like the one that destroyed the Japanese city of Hiroshima in World War II.

    I dunno, this asteroid threat doesn't sound like anything particularly worrisome, unless you happen to live right where the thing falls.

    --
    -- Moderation in all things, exceptions to all rules --
  42. Attention Terrans! by geekoid · · Score: 2, Funny

    You plan to have Ben Affleck and J-Lo make another movie has been found out be the Galactic council of goodness.
    If such plan is continued with, you will be destroyed as an example to other civilizations.

    That is all.
    qngduor3kfgh

    --
    The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  43. too fast by geekoid · · Score: 2, Insightful

    "Impact Velocity: 17.00 km/s = 10.56 miles/s"

    from the JPL link:

    Vimpact 12.59 km/s

    --
    The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  44. Re:Capture? how about catch-and-release? by ankhank · · Score: 2, Interesting

    Even getting an instrument package _onto_ one of these objects would be interesting. Add a little ion engine and enough computation to lock onto some target stars, dig in, push, watch, re-aim, figure out how to line the thrust up with the center of mass, despin it over time for consistent solar power. Then hope to find solutions that would eventually settle it into say a Lagrange point, not too close.

  45. Has anyone checked if it's an Apollo rocket body? by ikluft · · Score: 3, Interesting
    One thing seems odd about this to me... If a 420m-wide asteroid is in an orbit that crosses Earth's orbit twice a year, ranging from near Venus' orbit at perigee to just past Earth's at apogee, why wasn't 2004 MN4 noticed by astronomers at least 20-30 years ago?

    Does anyone remember the concern in Sept 2002 when an object dubbed "J002E3" was initially believed to be an Earth-crossing asteroid or previously-unknown moon was discovered? [ref: Slashdot, Planetary Society, CNN] It turned out to be the Apollo 12 3rd stage rocket body. The mistake was made because an object as bright as it was, if as reflective as a rock, would have been huge. But it wasn't a dark rock - it was a shiny metal cylinder. It had been re-captured into Earth orbit after decades in solar orbit.

    Probably every lunar probe and manned mission has sent a rocket booster into solar orbit as space junk. While probabilities of a 2004 MN4 collision in the future are computed, astronomers with the proper data should also try to project it back to see where it was during the Apollo era. Check if it may have come from Earth.

    Actually, I'm pretty sure astronomers are already projecting 2004 MN4's orbit back in time to see if there were any other observations of the object before. So this is something else for them to check.

  46. For others to investigate: US Surveyor 3 rocket? by ikluft · · Score: 3, Interesting
    Continuing the thread I started...

    I found an online tool to compute estimated positions of the 2004 MN4 asteroid according to the known estimates of its orbit. See http://neo.jpl.nasa.gov/cgi-bin/db?name=2004+MN4 .

    I ran it backwards in 3-month intervals looking for times that 2004 MN4 has last been near Earth. By this data, there was a very near pass by Earth around April 16-19, 1967.

    So I looked through a catalog of lunar launches. The NASA lunar probe Surveyor 3 was launched April 17, 1967.

    This alone is not sufficient to prove that 2004 MN4 is a booster from Surveyor 3. (Logic still dictates that the scenario of 2004 MN4 being a threatening asteroid is still a possibility on the table.) But with a coincidence as shown in these numbers, Surveyor 3 must be considered in any investigation into 2004 MN4.

  47. Re:Has anyone checked if it's a rocket body? by ikluft · · Score: 2, Interesting

    I posted this on my personal web site at http://www.kluft.com/~ikluft/opinions/2004mn4-surv eyor3.html . If there are any updates, I'll put them there.