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Latest Impact event Stories

2011-04-28 10:25:00

WASHINGTON, April 28, 2011 /PRNewswire-USNewswire/ -- Late last year, astronomers noticed an asteroid named Scheila had unexpectedly brightened, and it was sporting short-lived plumes.

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2011-04-28 11:40:00

Late last year, astronomers noticed an asteroid named Scheila had unexpectedly brightened, and it was sporting short-lived plumes.

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2011-04-04 11:34:29

Bombardments of 'micro-meteorites' on Earth and Mars 4 billion years ago may have caused the planets' climates to cool dramatically.

2011-03-16 07:20:00

TUCSON, Ariz., March 16, 2011 /PRNewswire/ -- The recent Japanese earthquake and tsunami and the 2004 Indonesian earthquake and tsunami have shocked the world. Dr.

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2011-01-29 12:19:48

What could happen if a 25-million-ton chunk of rock slammed into Earth?

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2010-12-10 12:40:00

A team of NASA-funded researchers has unveiled a new theory that contends planets gained the final portions of their mass from a limited number of large comet or asteroid impacts.

2010-12-09 17:49:00

MOFFETT FIELD, Calif., Dec. 9, 2010 /PRNewswire-USNewswire/ -- A team of NASA-funded researchers has unveiled a new theory that contends planets gained the final portions of their mass from a limited number of large comet or asteroid impacts more than 4.5 billion years ago.

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2010-11-04 06:00:00

Scientists at Purdue University and Imperial College London have revised their popular ‘Impact Effects Calculator’, which allows anyone to calculate the potential damage a comet or asteroid would cause if it collided with the Earth.

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2010-09-30 07:57:57

New research challenges the controversial theory that an ancient comet impact devastated the Clovis people, one of the earliest known cultures to inhabit North America.

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2010-08-29 07:25:00

A new study theorizes that the dinosaurs were wiped out 65 million years ago by at least two meteorite strikes rather than one.


Latest Impact event Reference Libraries

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2004-10-19 04:45:41

Crater -- A crater is a circular depression on the surface of a planet, moon, asteroid, or other celestial body. Craters are typically caused by meteorite impacts, although some are caused by volcanic activity. In the center of craters on Earth a crater lake often accumulates, and in craters formed by meteorites a central island (caused by rebounding crustal rock after the impact) is usually a prominent feature in the lake. Ancient craters whose relief has disappeared leaving only a...

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2004-10-19 04:45:40

Near-Earth Asteroid -- Near-Earth asteroids (NEAs) are asteroids whose orbit intersects Earth's orbit and which may therefore pose a collision danger, as well as being most easily accessible for spacecraft from Earth. In fact, some near-Earth asteroids can be reached with much less ΔV than the Moon. The most famous near-Earth asteroid is 433 Eros that was visited by NASA's Near Earth Asteroid Rendezvous probe. A few hundred such near-Earth asteroids are known, ranging in size up...

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Word of the Day
overword
  • To say in too many words; to express verbosely.
  • To express in too many words: sometimes used reflexively.
  • The leading idea or a repeated phrase, as of a song or ballad; the refrain; burden.
The word 'overword' comes from over- +‎ word.