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Earth Departure Movie From MESSENGER Spacecraft

A reader writes:"The Mercury-bound MESSENGER spacecraft took 358 images during a gravity assist swingby of Earth on Aug. 2, 2005. Those images were sequenced into an MPEG movie showing the view from MESSENGER as it departed Earth."

45 of 193 comments (clear)

  1. Mirror by Anonymous Coward · · Score: 5, Informative

    Corale Cache everyone!!! MESSENGER Flyby

  2. Slashdotted already? by nystagman · · Score: 5, Funny

    I count a grand total of one reply in this thread, and already the site seems to be slashdotted. I guess this just proves that the existence of the silent majority of ./ readers who actually try to RTFA before they post. My faith in humanity is restored!

    --
    Theory and practice are the same in theory, but different in practice.
    1. Re:Slashdotted already? by glesga_kiss · · Score: 2, Informative
      already the site seems to be slashdotted

      I just pulled the mpeg in at 600k/s, not bad for a 5 meg file on the front page of Slashdot.

      Cool video. It's a keeper. Just gotta keep reminding yourself that it's real, not SFX.

  3. And as always... Slashdotted into Oblivion. by wschalle · · Score: 5, Informative

    Here's the cache. Movie

  4. Mirror by dr_d_19 · · Score: 2, Informative

    Since the editors still think that 640kb of memory should be enough for everyone (including themselves, considering dupes and always forgetting about mirrors), here's the Coral cache.

  5. Beautiful.... by ClaraBow · · Score: 5, Insightful

    These images have a calming, peaceful effect. It is amazing how beautiful the earth looks from a far and how chaotic it seems when your in it! Get me out of here :)

    1. Re:Beautiful.... by mikerich · · Score: 2, Insightful
      Wow - that is stunning!

      I couldn't help but think of a short essay written by Carl Sagan after he saw an image of the Earth taken by Voyager. It's spine-tingling stuff:

      'Look again at that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there--on a mote of dust suspended in a sunbeam.

      'The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and triumph, they could become the momentary masters of a fraction of a dot. Think of the endless cruelties visited by the inhabitants of one corner of this pixel on the scarcely distinguishable inhabitants of some other corner, how frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds.

      'Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves.

      'The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand.

      'It has been said that astronomy is a humbling and character-building experience. There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known.'

      Carl Sagan, Pale Blue Dot, 1994

  6. Interesting by slavemowgli · · Score: 5, Insightful

    Interesting. If I didn't know better, I would've said that this is a POV-Ray animation...

    --
    quidquid latine dictum sit altum videtur.
    1. Re:Interesting by Queer+Boy · · Score: 2, Interesting
      If I didn't know better, I would've said that this is a POV-Ray animation...

      Really, because I didn't know that the sun made such a "hotspot" reflection on the earth. Interesting. All the other pictures I've seen from outer space of the earth make it look less "plastic".

      --
      Not since Marie-Antoinette played milkmaid has looking simple and honest been so fake and complicated.
    2. Re:Interesting by BenJeremy · · Score: 2, Informative

      The "hotspot" is from the oceans. Pay attention and you'll see, toward the very end of the clip, that the land mass glides through the edge of the hot spot.

      Also, while most cloud formations are not in the light long enough to see real change, one formation does appear to dissipate before hitting the terminator.

      This appears to be quite real.

    3. Re:Interesting by alfboggis · · Score: 5, Interesting

      Yeah, the earth is actually pretty smooth. Its diameter is 13,000 km, while Mount Everest is only about 9km high -- just 0.07%. Clouds cling very close to the surface at about 5km. That's about the thickness of a piece of paper compared to a basket ball.

  7. un /.'ed version by smoondog · · Score: 4, Informative

    Can be found here

    -Sean (OutdoorDB - The Outdoor Wiki

  8. In other news... by mwvdlee · · Score: 4, Funny

    "The MESSENGER MPEG-hosting server took 358 images during a slashdot assist launch off of Earth on Sep. 5, 2005. Those images were sequenced into an MPEG movie showing the view from the MESSENGER MPEG-hosting server as it departed Earth."

    --
    Slashdot social media options: AIM, ICQ, Yahoo, Jabber and Mobile Text. Why no MySpace?
  9. Ob. DNA - How to Leave the Planet by Haydn+Fenton · · Score: 4, Funny

    1. Phone NASA. Their phone number is (713) 483-3111. Explain that it's very important that you get away as soon as possible.
    2. If they do not cooperate, phone any friend you may have in the White House -- (202) 456-1414 -- to have a word on your behalf with the guys at NASA.
    3. If you don't have any friends in the White House, phone the Kremlin (ask the overseas operator for 0107-095-295-9051). They don't have any friends there either (at least, none to speak of), but they do seem to have a little influence, so you may as well try.
    4. If that also fails, phone the Pope for guidance. His telephone number is 011-39-6-6982, and I gather his switchboard is infallible.
    5. If all these attemps fail, flag down a passing flying saucer and explain that it's vitally important you get away before your phone bill arrives.

  10. Doesn't appear to be any stars or moon? by xtal · · Score: 2, Interesting

    I'm assuming the earth was probably too bright to get stars .. and it looks like this might have been inside the moon's orbit.

    Breathtaking video though. Very cool.

    --
    ..don't panic
  11. Impressive! by Henriok · · Score: 5, Interesting

    This is the real deal! The Earth is getting smaller in a realistic manner witch I've never seen before. I wonder what kind of acceleration and speed we are taling about here? These would be completely different figures in the movie and the real event. Someone care to do the math?

    Don't you just love the reflection of the Sun? And the absence of a "glowing" atmosphere halo? This is what the Earth really look like. Please render planets like this when you do SciFi flicks in the future!

    --

    - Henrik

    - when the Shadows descend -
    1. Re:Impressive! by stupid_is · · Score: 4, Informative
      From TFA:

      The movie starts when MESSENGER was 40,761 miles (65,598 kilometers) above South America on Aug. 2. It ends when the probe was 270,847 miles (435,885 kilometers) away from Earth - farther than the Moon's orbit - on Aug. 3.

      Looking at the mpeg with the timestamps, it was pretty much exactly (8mins out) 24 hours, so that makes it travelling at an average speed of roughly 4.29 km/s.

      --
      -- Intelligence is soluble in alcohol
    2. Re:Impressive! by BACPro · · Score: 2, Funny

      Pretty static weather as well.
      They forgot to make the clouds move.

  12. I'd love to oblige by vikstar · · Score: 2, Funny

    I think slashdot news posters must *love* to get people posting comments about their links getting slashdotted. So, here is another rant... "ah, slashdotted already".

    Either that or they have a running king-of-the-hill contest on who can slashdot a site the fastest.

    --
    The question of whether a computer can think is no more interesting than the question of whether a submarine can swim.
  13. No sound?!? by jemnery · · Score: 5, Funny

    I don't get it - where is the audio on this thing? In the background there must have been either:

    1. A swooshy spaceship noice

    or

    2. The opening bars of the Star Trek: TNG theme tune

    1. Re:No sound?!? by DigiShaman · · Score: 4, Funny

      If it was from an alien spaceship, I would imagine something translated into...

      "Are we there yet?

      no

      Are we there yet?

      no ...

      Are we there yet

      NO!

      --
      Life is not for the lazy.
    2. Re:No sound?!? by gowen · · Score: 2, Interesting

      I just lowered the frame rate on the MPEG, and put the "Blue Danube Waltz" on the CD player...

      --
      Athletic Scholarships to universities make as much sense as academic scholarships to sports teams.
  14. Underwhelmed by Linker3000 · · Score: 4, Interesting

    With the current state of CGI and a world awash with 'fake' scifi images running all the way back to 2001: A space Odyssey, it's a shame that this footage just looks so 'plain' even though it's 'the real thing'. Mind you, I find Google Earth truly fascinating.

    --
    AT&ROFLMAO
    1. Re:Underwhelmed by ashitaka · · Score: 2, Informative

      Much misinformation here and in other replies.

      1) The Voyager probes were launched 9 years after 2001 came out.

      2) Kubrick wasn't happy with the look of the effects of Saturn produced by Doug Trumbell so the destination was switched to Jupiter.

      3) Doug got better at producing Saturn imagery and used it in "Silent Running".

      --
      If you don't want to repeat the past, stop living in it.
  15. collision 27th frame from end by emptybody · · Score: 4, Interesting

    go frame by frame for some interesting events.
    most spectacular is the flash 27 frames from the end. looks like it could be lightning or a large meteor.

    --
    comment directly in my journal
    1. Re:collision 27th frame from end by Anonymous Coward · · Score: 4, Funny

      Holy mother of god, if you zoom in on the earth at the flash point 27 frames from the end of the footage, you can just about make out (through the compression artifacts) the image of a Klingon battle cruiser breaking orbit and jumping to warp.

    2. Re:collision 27th frame from end by Ariane+6 · · Score: 4, Informative

      If by 'collision' you mean 'collision of a cosmic ray with the detector, then yes.

      Any meteor big enough to be visible from that far away would have been noticed by a LOT of people.

      There is a nice flash over southern Africa when the Sun's specular highlight hits lake Tangaynika, though.

    3. Re:collision 27th frame from end by Ariane+6 · · Score: 4, Interesting

      Well, if we saw a thin crescent Earth, then the solar phase angle (sun-earth-observer) would be nearly 180 degrees, and the specular highlight would be right on the western (left) horizon, just like you see on when watching sunset over the ocean on Earth's surface. Since we're seeing a less mature crescent, that means that the angle is in fact only slightly greater than 90, and the highlight hasn't gone that far yet.

      Phase = 0 --> highlight is directly below you

      Phase = 90 --> highlight is halfway between nadir and the western limb

      As phase tends to180 --> highlight disappears over the western limb.

  16. Good for the industry by CubicleView · · Score: 2, Insightful
    I love when nasa release pictures like these. As with many of the pictures the rovers have taken the scientific benifit is not very apparent (well to me anyway..) Often they're just cool pictures.

    I'm sure they could be taken as simply a successful test of the probes systems, but they also capture peoples imagination and help keep the space program going.

  17. Stop whining, use greasemonkey by eqisow · · Score: 2, Informative

    Greasemonkey
    Script to auto add mirrordot and coralcache links to stories.

    Seriously, stop whining and take matters into your own hands.

  18. What is there to see? by kanweg · · Score: 2, Interesting

    Is that our planet? It is quite hard to distinguish anything.

    I think I can see the north-west part of Australia at about 1/3rd of the movie, the land being amazingly black. At about 2/3rds one can see (in the topleft "corner") Saudi-Arabia, followed by northern Africa, both golden/yellowish. Now why is that so much brighter than the deserts of Australia.

    I'm also surprised by the fact that we see the line where the sun goes down, which suggests that the Messenger is going into a retrograde direction. Isn't that unusual?

    I'd expect a satellite that is to go to an inner orbit to pass outside the earth's orbit. That seems to pan out, because we start with something more like a sickle, going to "half earth".

    Bert

  19. Re:maybe you're rtight? is this fake? by MidnightBrewer · · Score: 4, Informative

    Actually, there was a great shot of Australia sweeping by and it was significantly darker before brightening again, because it has a relatively low specularity compared to the surrounding ocean (the hotspot was traveling over it.) The specular highlight was correct; the ocean does indeed have a highlight like that.

    I think calculating a 23-degree angle with absolutely no point of reference would be a bit of a challenge (it assumes the probe's camera is aligned to the solar ecliptic, which is pretty unlikely.)

    I think the problem is that most photos are very close and pretty much with the sun behind the photographer. Another good indication that this was real instead of animated - the complete lack of stars. Astronauts have commented that the reflected sunlight off of the earth completely drowns out the background stars - in other words, reality looks fake because it doesn't resemble the fake reality Hollywood has taught us to expect.

    --
    "Give a man 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
  20. Looks like that Orbiter simulator by flinxmeister · · Score: 5, Interesting

    Has anyone played with that Orbetor Simulator?

    Seeing this animation made me realize just how good that programmer is. The visualizations on that simulator nailed it pretty well. And it's free too!

  21. Question! by nherm · · Score: 4, Interesting

    Ok I got a question about the spacecraft's orbit!

    From the video, the spacecraft seems to be travelling at the opposite direction of earth's translation (i.e. clockwise in the ecliptic plane, viewing from sun's north to south hemisphere), because the dayside is at the left, and the Earth is, well, becoming smaller...

    But, this diagram of messenger's orbit from the article in wikipedia shows that the spacecraft travells in the counter-clockwise direction (same as the planets)... so, I would conclude that the spacecraft speed is less than the Earth's orbital speed.

    Question: is that correct?

    1. Re:Question! by jrboatright · · Score: 5, Interesting

      Orbital mechanics is "not obvious."

      as an object drops into a lower orbit they orbit in fewer seconds. Venus goes around the sun in fewer days than earth does, as does mercury...

      HOWEVER, the linear velocity of an inner orbit is slower than the linear velocity of an outer orbit.

      So, to go in, you slow down. Which results in dropping to a lower orbit, which results in your pulling out "in front" of the object you're seperating from leaving it both "above" you and "behind" you.

      So, accelerating spinwise is out, and slower.

      Accelerating anti-spinwise is in, and faster

      let us not get into what happens when you accelerate OUT or IN....

  22. Re:Reverse It by glass_window · · Score: 2, Funny

    Open the file in text editor and take all the characters from the end and put them one-by-one at the beginning until you've turned the entire file around.

  23. occlusion by dankelley · · Score: 2, Funny

    It's almost as if posting to /. increases the traffic on a site, making that site useless for a while. I wonder if anyone has invented a name for this effect?

  24. Background info on this video by Rocketguy2 · · Score: 5, Informative

    I was one of the team that worked hard to sequence this spacecraft operation, and I can assure you, it is quite real! MESSENGER, a NASA Discover program, was developed and is operated by the Johns Hopkins University Applied Physics Lab, is headed to the planet Mercury; not an easy place to get to. This flyby is the first of 6 (1 Earth, 2 Venus, 3 Mercury) that are required to put the spacecraft into Mercury orbit. Once there, the spacecraft will go into an elliptical orbit and commence a series of science observations. The extensive payload includes the following: narrow and wide angle imagers, LIDAR, X-ray, gamma-ray, and neutron sensors, magnetometer, visible, near IR and UV spectrometers, energetic particle and plasma sensors. The spacecraft did not take an approach video for two reasons. First, there were extensive instrument calibration efforts going on during that time (e.g. lunar and magnetospheric observations) that required specific spacecraft pointing. In addition, the solid state recorder space is limited, so we chose to get the single 24-hour sequence you see in the movie.

  25. Wrong aspect ratio with mplayer by YA_Python_dev · · Score: 3, Informative

    If you watch this with mplayer (at least version 1.0pre7), it will wrongly assume that the aspect ratio is 4:3. Just use the -noaspect option.

    I don't know whose fault this is, but I suspect that the movie is badly encoded.

    --
    There's a hidden treasure in Python 3.x: __prepare__()
  26. Re:Well, the Earth is here, but... by Mechcozmo · · Score: 2, Informative

    The Earth is so bright, it overpowers the stars. If you play with your brightness and exposure, you may be able to see faint outlines of them, however the movie isn't the highest quality movie ever, so it may take a lot of fiddling with your controls. Rest assured however, I have not stolen them all yet.

  27. OMG this is fake! by aztektum · · Score: 3, Funny

    Look there are no stars in the background! It's the same as with the moon landing videos! Space is filled with billions of stars! Where are they? I demand an investigation into what NASA is really spending our money on!!!

    --
    :: aztek ::
    No sig for you!!
  28. Re:More info at NASA... by daeley · · Score: 2

    Have some digity!

    Not to mention composre and decorm! ;)

    --
    I watched C-beams glitter in the dark near the Tannhauser gate.
  29. Re:More info at NASA... by Dun+Malg · · Score: 2
    Have some digity!

    Not to mention composre and decorm! ;)

    Heh. Not sure what composre and decorm mean*, but I think "having some digity" means to posess a plurality of fingers.

    * they sound like they might be UNIX utilities. e.g. "run 'composre -w -all' to flush the /dev/null cache", and "decorm functions just like rm, only with a 1930's architechtural flair"....

    --
    If a job's not worth doing, it's not worth doing right.
  30. Only flyby movie ever taken by heroine · · Score: 2, Interesting

    It's hard to believe those images came from Messenger. We've never seen a view of Earth by an interplanetary spaceship flying by in such clarity. Normally the cameras are fixed to the exact focus needed by the mission and only record a few colors.