How long ago did the meteor impact the Earth and create that crater?

Answer 1

An American team found the world's biggest meteor crater almost two kilometres deepunder the Wilkes Land region of Antarctica, directly south of Australia. They say the 500-kilometre-wide crater wascaused by a meteor almost 50 kilometres wide,the size of Sydney. The meteor struck 250 million years ago and must have been the biggest explosion ever seen on the planet, far bigger than the 10-kilometre-wide meteor which hit east of Mexico 65 million years ago, wiping out the dinosaurs. The massive explosion from the impact probably created the continent of Australia, forcing it to break away from the existing land mass. Ohio State University scientists who found the crater said the massive Antarctic crater could explain the global extinction in the Permian-Triassic period when all animal life on Earth died out, clearing the way for the dinosaurs.

Answer 2

The meteor impact that created the Chicxulub crater in Mexico is estimated to have occurred about 66 million years ago. This impact is widely believed to have played a significant role in the mass extinction event that caused the extinction of the dinosaurs.

Answer 3

I assume you mean Barringer Crater in Arizona. 50.000 years.

http://www.barringercrater.com

well I'm assuming they meant the crater that killed the dinosaurs. about 65 millions years ago. :P

Answer 4

About 10 minutes after the Earth itself formed. The Earth had _always_ been bombarded by stray space rocks, because they were part of the formation of the solar system. IN fact, the Earth itself probably formed as the various space rocks banged together and clumped up under the force of their own gravity.

Answer 5

One year and two weeks ago. (Well, we can't be sure that that was the "last big meteor" - just the most recent one that was widely observed.)

On February 15, 2013, a meteoroid believed to be about the size of a bus hit the atmosphere and exploded near the town of Chelyabinsk, Russia. The blast broke windows all over town. Nobody was killed, but there were thousands of injuries due mostly to flying glass; people ran to the windows to see what that bright flash was, and were standing near the windows when the shock wave shattered the windows. One teacher, remembering her cold war vintage "duck and cover" training, had her students dive under their desks. None of them were injured when the windows shattered, because the glass mostly landed on the floor and on the desks.

However, the Earth is 3/4 water, and it's quite possible that a bigger one exploded over water, or hit the water, or hit desert areas such as northern Africa or the Outback of Australia. It could easily have gone unnoticed.

Answer 6

The Moon has never crashed into the Earth.

One theory for the Moon's formation hypothesizes that a body approximately the size of Mars hit the Earth while it was forming, and the resulting impact ejected material that condensed into the Moon. If so, this impact probably occurred about 4.5 billion years ago, while the solar system was still in the process of forming.

(The name given to this hypothetical impactor is usually Theia.)

Answer 7

Meteors hit Earth all the time. Most are tiny and make no impact. There are bigger ones, like the Tunguska one in Russia in 1908, or the one that created the crater in Arizona about 50,000 years ago and the one that may have caused the extinction of dinosaurs when it hit near southern Mexico about 65 million years ago.

Answer 8

Earth is hit by meteorites every day, many times over.

Answer 9

Several hundred meteorites fall to Earth each year, but only a handful are found. Roughly 70% will fall in the oceans.

Answer 10

After the meteor hit.