New pictures from Deep Impact up at NASA website.

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New pictures from Deep Impact up at NASA website.

Postby Arlos » Mon Jul 11, 2005 10:39 am

Composite movie from the probe's still pictures as it approaches the comet:
http://www.nasa.gov/mov/121572main_its_approach_inv.mov


Picture from impactor probe from 5 minutes before impact
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Picture from impactor probe from 90 seconds before impact
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Picture from impactor probe from 60 seconds before impact
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Picture from the impactor probe from 20 seconds before impact.
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Picture from the orbiter 67 seconds after the probe impacted.
Image


More pictures and data can be found HERE: http://deepimpact.jpl.nasa.gov/home/index.html

Very cool shit.

-Arlos
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Postby Ganzo » Mon Jul 11, 2005 11:43 am

cool its black and white pictures of a big rock, exactly how i thought rock in space would look like
גם זה יעבור

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Postby Drem » Mon Jul 11, 2005 11:48 am

how does it form smooth on the flat spots with higher surfaces being rough? that's crazy if comets are in fact layered objects
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Postby Arlos » Mon Jul 11, 2005 12:29 pm

That's just it, Ganzo, it's not a rock, it's a comet. It's a collection of dust and ice, along with frozen gasses. These are the closest and most detailed pictures we've ever had of a comet, since the ones closest enough for us to see well are close enough to the sun to be massively outgassing, which obscures the view completely.

From this impact, we saw a lot less water vapor than we thought we would, and found that the dust grains that made up the surface area were as small and as fine as those in talcum powder. So, it tells us a lot about how comets (or at least that one) were formed, what they're made of, but also raises entirely new questions, like, "Why isn't there more water?" etc. We may get more answers once the dust cloud from the impact fades more, right now it's obscuring the crater the impactor probe made. Be great to be able to see down inside the actual cometary body, to the stuff that formed there 5 billion years ago when the solar system was new, instead of possibly newer dust on the surface, etc.

-Arlos
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Postby kaharthemad » Mon Jul 11, 2005 1:46 pm

I agree Arlos, this is some amazing stuff. Any specualtion what we wil see afterward?
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Postby mofish » Mon Jul 11, 2005 1:54 pm

Arlos wrote:That's just it, Ganzo, it's not a rock, it's a comet. It's a collection of dust and ice, along with frozen gasses. These are the closest and most detailed pictures we've ever had of a comet, since the ones closest enough for us to see well are close enough to the sun to be massively outgassing, which obscures the view completely.

From this impact, we saw a lot less water vapor than we thought we would, and found that the dust grains that made up the surface area were as small and as fine as those in talcum powder. So, it tells us a lot about how comets (or at least that one) were formed, what they're made of, but also raises entirely new questions, like, "Why isn't there more water?" etc. We may get more answers once the dust cloud from the impact fades more, right now it's obscuring the crater the impactor probe made. Be great to be able to see down inside the actual cometary body, to the stuff that formed there 5 billion years ago when the solar system was new, instead of possibly newer dust on the surface, etc.

-Arlos


Why even bother explaining. Some people just dont get it, will never get it, dont want to get it.
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Postby Tikker » Mon Jul 11, 2005 1:56 pm

still hard to believe they hit it


it's like being able to shoot a fast ball with a bb gun
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Postby kaharthemad » Mon Jul 11, 2005 1:59 pm

more like a bullet with a bb gun
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Postby mappatazee » Mon Jul 11, 2005 2:23 pm

kaharthemad wrote:more like a bullet with a bb gun
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