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Here's all the info you could even need on this. More than you want probably. If you aren't scared when you are done reading it something is wrong. Keep in mind, the size is not the only factor on the devastation one of these nasty buggers could cause. Mass and velocity both play a factor. A heavy smaller object travelling faster is just as bad as a bigger but lighter slower moving object. http://neo.jpl.NASA.gov/ The Reasoner - http://un-reasonable.blogspot.com
What else can I help you with?
How big is a moon?
Anywhere from a small asteroid to Earth's size, depending on the planet.
How big of crater would 99942 apophis asteroid make?
The impact of asteroid Apophis, which is about 340 meters in diameter, would create a crater up to 5-6 kilometers in diameter if it were to hit Earth. The exact size would depend on various factors such as the asteroid's density, speed, and angle of impact.
How long before the metor as big as Texas will hit earth?
There are no known asteroids the size of Texas that have even the slightest chance of hitting Earth. The only known Texas-sized asteroid is Ceres, which has a stable orbit in the asteroid belt and could never hit Earth.
What effect do asteriods have on earth?
Unless the asteroid actually STRIKES the Earth, then they have virtually no effect at all. If the asteroid does strike the Earth, then it will cause damage like any other falling rock, although in this case the rock is falling at at least 25,000 miles per hour and may be tons or thousands of tons in size. An asteroid the size of a school bus exploded in the atmosphere over Chelyabinsk, Russia on February 15, 2013, causing millions of dollars in damage and causing over 1,000 injuries, mostly from flying glass. If an asteroid the size of a ship were to hit the Earth (it has happened before!) it would cause continent-wide damage, and a really BIG asteroid could devastate the entire Earth.
Was caused by fallen debris from asteroid impact on dry soil and rock?
Scientists believe that fallen debris from an asteroid impacted on dry soil and rock caused Earth to form. This is referred to as "The Big Bang Theory".
What country did the 2008 asteroid hit in Canada?
no it was not an asteroid that hit the earth, it was kevins big mouth
What could happen if an asteroid hit the earth?
if its bigger than isle of man it would do a very big impact and damage
Is a asteroid smaller or bigger than earth?
Smaller. Something as big as the Earth would have so much gravity that it would probably have collided with something else and been eliminated
It can make a big hole on earth what is it?
Probably an asteroid, meteor or comet.
How big does an asteroid need to be in order to impact Earth?
An asteroid needs to be at least 25 meters in diameter to cause significant damage upon impacting Earth.
If an asteroid impact were to stop the Earth from rotating how big would that asteroid need to be?
size doesn't matter its the angle and speed of the asteroid that it is at, plus if that did happen the earth would either drift off into space and eventually get back into a orbit because of the suns gravity or explodes and everything would just flip, roll over, fall how ever you wanna put it. plus its nearly impossible for a asteroid to do that it would probably do what i said in the second sentence.
How big is a moon?
Anywhere from a small asteroid to Earth's size, depending on the planet.
How big of crater would 99942 apophis asteroid make?
The impact of asteroid Apophis, which is about 340 meters in diameter, would create a crater up to 5-6 kilometers in diameter if it were to hit Earth. The exact size would depend on various factors such as the asteroid's density, speed, and angle of impact.
Is a big asteroid more harmful than a small one?
No asteroid is at all harmful to us or to Earth unless our planet and the Asteroid draw unusually close together. If that were to happen, then yes, you'd have to say that for a close encounter of any given distance, the probability of unpleasant results would vary roughly in proportion to the asteroid's physical size.
Where are meteroids from?
rocks of dust :)like a big rock with holes in themor a big pile of space dust combine togetherand probably another asteroid hit the Chicxulub asteroid whic cause it to come to earth:(
Could a comet or asteroid or meteorite destroy the Earth?
Yes they all could destroy Earth depending how big it is, how big the impact is when it hits, and where it hits,but its possible. Hope this helps.
What happens when an asteroid collides with a planet?
It would maybe explode it depends on how big the asteroid is or how affective it can be all it mattters is that it will destroy anything in its path.
