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NASA; Vesta is not a rock its a small planet 08/01/2011.mov

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Uploaded by on Aug 1, 2011

https://www.facebook.com/CoasttoCoastafterDark?sk=app_4949752878
http://dawn.jpl.nasa.gov/
Vesta--Is it Really an Asteroid?
March 29, 2011: On March 29, 1807, German astronomer Heinrich Wilhelm Olbers spotted Vesta as a pinprick of light in the sky. Two hundred and four years later, as NASA's Dawn spacecraft prepares to begin orbiting this intriguing world, scientists now know how special this world is, even if there has been some debate on how to classify it.

Many astronomers call Vesta an asteroid because it lies in the main asteroid belt between Mars and Jupiter. But Vesta is not a typical member of that orbiting rubble patch. The vast majority of objects in the main belt are lightweights, 100 kilometers wide or smaller, compared with Vesta, which is a 530 kilometer-wide behemoth.

"I don't think Vesta should be called an asteroid," said Tom McCord, a Dawn co-investigator based at the Bear Fight Institute, Winthrop, Wash. "Not only is Vesta so much larger, but it's an evolved object, unlike most things we call asteroids."

http://www.time.com/time/health/article/0,8599,2069835,00.html
Schoolchildren by the thousands wept when Pluto was officially banished from the ranks of the major planets back in 2006, but for the asteroids, demotion to the interplanetary minor leagues is very old news. When Ceres was discovered in 1801 during a search of the mysteriously empty space between Mars and Jupiter, astronomers were convinced they'd found a new planet. By the late 1800s, however, so many Ceres-like objects had been found that they were sometimes referred to as the "vermin of the skies." Aghast at the notion of a solar system with dozens and dozens of planets, astronomers reclassified the whole lot as asteroids.

Whatever you call them, asteroids are hugely fascinating objects — and after nearly four years en route, a NASA probe called Dawn is entering its final approach to Vesta, the second largest of them all. At some 350 miles (570 km) across, it is about the size of Arizona. Vesta is an oblate spheroid — which is sciencespeak for a slightly squashed ball — and represents about 9% of the mass of the entire asteroid belt.

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Uploader Comments (MrThemastercleanser)

  • this video needs to be remade so that the talk corresponds to the images. They talk about a lot of things and yet we see only 2-3 images for the whole video that do not synch up with the talk at all.

  • @Shaden0040 this was done live and the pictures they showed were very few and not posted on there site before the show aired. As a public service I only posted the audio. If you hear them they needed to wait for better pictures and they are not yet presented, only 1 a week so stay tuned, go to the JPL site for updates thanks for the post Francisco, Mrthemastercleanser

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All Comments (19)

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  • uh uh uh......???????????

  • @outbreak111 Busy spreading negativity and disinformation aren't we ?

  • IT´S REALLY A PLANET...HUUUUM TAKE A AUMENTATION GLASS LET YOUR EYES TAKE SOMME MINUTES IN CONTACT WITH THE VESTA PICTURES THEM AND YOU´LL SEE THAT´S REALLY , REALLY A "LIVING" PLANET , WRIGHT???

  • As smart as this guy is perhaps he should have spent a bit of time in college in a public speaking class, I cant make it passed the uh's almost once every three words consistently. Or perhaps he should have just written out what it is he wanted to say.

  • small planet? no, its just a very large asteroid. It isn't spherical.

  • WTF does this have to do with Vesta not being a rock?

  • @uboogerlips1 LOLOLOL yeah thats what i was gonna say

  • this is a waste of time mission

  • Uhhhh and uhh so we have ahhhh a ahh picture of ahhhhh the ahhhh surface uhhh ahhh um and it uhhhh looks uhhhhhh ahhh really uhhhhhh interesting...

  • then uuuuuuhhhh what we are uuuuuuhhh and also with uuuhhhhhhmmm learng about these....uuuuhhhhhh and uummmm is that in any way unclear?

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