Craters/Asteroids

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Glenners
Rhymenosaurus

Registered: 05/20/08
Posts: 1,933

Craters/Asteroids

#12519844 - 05/07/10 12:52 AM (16 years, 5 months ago)

I was watching a program on the discovery channel about near earth objects and they talk about craters formed from impacts. They say how this one asteroid that made a certain crater they're showing would have gone into the earth about it's own diameter. So why can't they just dig down and find the asteroid if it's still so fresh the top hasn't eroded yet?
Wtf happens to large asteroids that have left good marks on the earth? Do they erode away before the rock around them? I don't see how that could happen.

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fiddle

Registered: 04/10/08
Posts: 1,769
Loc: PNW

Re: Craters/Asteroids

[Re: Glenners]
#12519872 - 05/07/10 12:55 AM (16 years, 5 months ago)

I'm fairly certain that they're destroyed in the collision, and their debris are scattered around the impact site.

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Tickle my bassline.

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Glenners
Rhymenosaurus

Registered: 05/20/08
Posts: 1,933

Re: Craters/Asteroids

[Re: fiddle]
#12519881 - 05/07/10 12:57 AM (16 years, 5 months ago)

http://en.wikipedia.org/wiki/Impact_crater

Yup, finally found the page with the right information. Had to go through lots of doomsday pages before i figured out what to type.

That sucks they explode, it would be sweet to excavate a gigantic asteroid.

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audiophoenix
Find Peace

Registered: 08/28/09
Posts: 4,107
Loc: Upstate NY
Last seen: 1 year, 29 days

Re: Craters/Asteroids

[Re: Glenners]
#12519895 - 05/07/10 01:00 AM (16 years, 5 months ago)

It depends on the asteroid but most are not dense enough to hold shape and they will disintegrate on impact

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DieCommie

Registered: 12/11/03
Posts: 29,258

Re: Craters/Asteroids

[Re: Glenners]
#12519896 - 05/07/10 01:00 AM (16 years, 5 months ago)

I think some of them explode before impact, which steal leaves a big ass crater.

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FeedingMyDreams
King of Cartoons

Registered: 08/30/08
Posts: 6,091
Loc: tabb, va
Last seen: 4 years, 3 months

Re: Craters/Asteroids

[Re: Glenners]
#12519935 - 05/07/10 01:05 AM (16 years, 5 months ago)

Glenners said:

I was watching a program on the discovery channel about near earth objects and they talk about craters formed from impacts. They say how this one asteroid that made a certain crater they're showing would have gone into the earth about it's own diameter. So why can't they just dig down and find the asteroid if it's still so fresh the top hasn't eroded yet?
Wtf happens to large asteroids that have left good marks on the earth? Do they erode away before the rock around them? I don't see how that could happen.

Really?

These fucking monster are destroyed on impact and mostly end up in the atmosphere.

Think of a nuclear bomb. It's like asking why isn't the bomb still there?

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"It's spaghetti time."

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Glenners
Rhymenosaurus

Registered: 05/20/08
Posts: 1,933

Re: Craters/Asteroids

[Re: FeedingMyDreams]
#12519954 - 05/07/10 01:09 AM (16 years, 5 months ago)

Well a nuclear bomb is a relatively small amount of material where-as meteors can be 20km wide solid hunks of rock. So you could see my initial reasoning.

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FeedingMyDreams
King of Cartoons

Registered: 08/30/08
Posts: 6,091
Loc: tabb, va
Last seen: 4 years, 3 months

Re: Craters/Asteroids

[Re: Glenners]
#12519971 - 05/07/10 01:13 AM (16 years, 5 months ago)

Glenners said:

Well a nuclear bomb is a relatively small amount of material where-as meteors can be 20km wide solid hunks of rock. So you could see my initial reasoning.

Not really. The amount of energy and friction that comes from large asteroids is instantly pulverized when it hits the surface. That's if it doesn't already blow up in the air.

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"It's spaghetti time."

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