NASA Counts 4,700 Potentially Hazardous Near-Earth Asteroids
coondoggie writes "NASA continues to get a better handle on the asteroids buzzing around in space saying today that there are roughly 4,700 potentially hazardous asteroids, or as NASA calls them PHAs. NASA says these PHAs are a subset of a larger group of near-Earth asteroids but have the closest orbits to Earth's – passing within five million miles (or about eight million kilometers) and are big enough to survive passing through Earth's atmosphere and cause damage on a regional, or greater, scale."
"Here comes one now!" to which they replied: "PHA!"
PHA - Pointy Haired Asteroid?
From WP: "An object is considered a PHO if its minimum orbit intersection distance (MOID) with respect to Earth is less than 0.05 AU (7,500,000 km; 4,600,000 mi) and its diameter is at least 150 m (nearly 500 ft)".
Why does TFS indicate that the distance in miles is accurate when it is just as much an approximation as the one in km?
So what are we going to do when one the size of texas comes heading for DC I mean aside from putting marshmallows on extremely long sticks :)
Build a Man a Fire, and He'll Be Warm for a Day. Set a Man on Fire, and He'll Be Warm for the Rest of His Life.
I'm going to beat the drum for Star Tram again here, we need this built to have a defence against asteroids, since Bruce Willis is a bit long in the tooth to be leading a gang of roughnecks to the rescue at this stage.
So, which one is going to hit us on Dec 21st? :)
I know, I know, NASA says there isn't one. Every good tinfoil hat wearing conspiracy nut knows it's coming.
For a special limited time, I am offering tinfoil hat adjustments, should you not see the "truth". Paypal me $499.95 and your hat size, and I'll send you out a properly adjusted tinfoil hat.
Serious? Seriousness is well above my pay grade.
It kind of disappoints me when I read an article on slashdot that is about something worthwhile that humanity really needs to get behind and fund, yet there won't be many comments. This is one of those types of articles. Normally the surefire comment magnets are trolling articles, or feature a topic that has a lot of fanbois, or better yet a technological holy war between several factions of fanbois.
However, that shouldn't be a sign that no one is interested or cares about such things. We do. This site is about Stuff That Matters. Researching and preventing low probability cataclysms now we have the technology to attempt it is a very important and noble goal. Whether the average person realizes it or not, those goals are more important than 99% of other charitable goals, because without a habitable earth or human population there is no point to any charity.
So in future while I can't usually add much more than a boring "this is great, more of this please" or a dumb joke if at all, this stuff is important and yes, we need more of it. Don't take low numbers of comments for lack of interest or perceived priority.
If I have seen further it is by stealing the Intellectual Property of giants.
"Avast Armageddon" - Sounds like a planet-scale AV product gone awry.
...oh well.
I installed MyCleanPC and it cleaned out my bank account! It also converted my great porn collection to all gay porn. My wife left me when she saw that, even though you can clearly tell all the dicks are photoshopped onto the chicks!
I thought there were more like 470,000 PHOs. Whew!
Whenever these stories get posted, there is always a calming disclaimer that none of the asteroids threatens Earth. But does anyone know whether NASA (or anyone else) is modeling asteroid orbits with each other? I realize it's not like a set of billiard balls, but is anyone checking to see if any current non-threatening asteroids could be diverting into Earth's path from colliding with another object?
If I was a multi-billionaire and a huge asteroid was going to kill earth i would develop a special ship and suit to allow me to dock with and dr strangelove the asteroid to impact. Just think how great that would feel.
http://youtu.be/cKT1VGIDEd4?hd=1
Here's a cool video showing all known asteroids with a time-lapse revealing the year they were discovered: http://youtu.be/cKT1VGIDEd4?hd=1
Even if you're on the right track, you'll get run over if you just sit there. - Will Rogers
We'll destroy the PHAs with our Super Energy Ray.
And that's the true origin of the PHASER !
https://app.box.com/WitthoftResume Code: https://github.com/cellocgw
Space Nukes! We need Space Nukes! Or maybe reinstate the Star Wars Program? ZAP!
Although, we should try to keep the materials in orbit since they have more "value" there. Maybe build a space station twice the altitude of geosynchronous orbit that can melt it down, purify and then manufacture parts/ships/space stations.
how is that insightful??
"another asteroid between 4.5 and 10 meters (14-33 feet) wide" just missed the Earth. Go look at http://neo.jpl.nasa.gov/stats/ for real data. Thing is we are in estimated 95 percentile about potentially hazardous asteroids now.