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Latest Impact event Stories

Geologists Assess Deep Impacts Of Near-Earth Object Strikes
2011-10-18 08:03:44

Volcanologists from the Universities of Leicester and Durham have forensically reconstructed the impact of a meteorite on Earth and how debris was hurled from the crater to devastate the surrounding region. New research by Mike Branney, of the University of Leicester's Department of Geology, and Richard Brown, University of Durham, shows that some aspects of giant meteorite impacts onto Earth may mimic the behavior of large volcanic eruptions. Meteorite impacts are more common than is...

What Caused Asteroid Scheila’s Outburst?
2011-10-08 05:07:17

A remarkable discovery was made by astronomers on 12 December 2010: an asteroid named Scheila had changed its appearance and looked more like a comet, complete with bright tail. An international team of scientists have used innovative modeling techniques to support the idea that the cause was another object impacting Scheila, ejecting material from the asteroid. The lead scientist of this study, Fernando Moreno of the Instituto de Astrofísica de Andalucía in Granada,...

Image 1 - Comet Found To Contain Ocean-Like Water
2011-10-05 14:10:47

According to a new study published in the journal Nature on Wednesday, the Earth's ocean may have been created by comets. Measurements taken from the Herschel Space Observatory show that comet Hartley 2 contains water with the same chemical signature as Earth's oceans. This comet lies in the Kuiper Belt about 30 to 50 times as far away as the distance between Earth and the sun. "Our results with Herschel suggest that comets could have played a major role in bringing vast amounts of...

Image 1 - Earth Safer Than Previously Thought From Mid-Size Asteroids
2011-09-29 11:57:27

[ Watch the Video ] New asteroid population numbers given by NASA shows that Earth isn't as threatened as previously thought by the space rocks. NASA announced on Thursday that its Wide-field Infrared Survey Explore (WISE) has found that there are significantly less near-Earth asteroids in the mid-size range than previously thought. Astronomers believe there are about 19,500 mid-size near-Earth asteroids, which is over 15,000 less than previously thought. Scientists say this...

Meteorites May Have Brought Precious Metals to Earth
2011-09-08 04:20:54

  Precious metals such as gold, platinum and tungsten were brought to Earth by a massive meteorite shower that occurred approximately 650 million years after the planet formed, scientists from the University of Bristol revealed on Wednesday. According to a university press release, researchers Dr. Matthias Willbold and Professor Tim Elliott of the university's School of Earth Sciences, studied nearly four billion year old rock samples recovered from Greenland. The samples, which...

space-082411-003
2011-08-24 14:46:12

  Computer models of asteroid impact debris from Earth to other planets show 100 times more particles end up on Mars than prior studies have shown. The highest-energy impact simulations show debris being flung into the planetary orbits and eventually finding its way to Jupiter. Two moons of which may be amenable to some forms of Earth-based life, BBC News is reporting. Panspermia is a theory that occupies much of meteoritic research, primarily that the precursors to life, or living...

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2011-07-13 10:40:00

Lawrence LeBlond for redOrbit.com - Your Universe Online The debate whether dinosaurs went extinct due to a large space rock that struck the Earth 65.5 million years ago (MYA) may have been answered with the discovery of a distinctive brow horn from a Ceratopsian dinosaur just 13 centimeters (5.1 inches) below the K-T boundary -- the distinct layer of geological sediments separating the Cretaceous and Tertiary periods. Rocks laid down 65.5 MYA show a thin layer abundant in rare elements...


Latest Impact event Reference Libraries

6_d482c2be3fde61d7b1ea392b972acdb62
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...

3_8254e27b9fccec1aaab3b9785e39d79f2
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
bodacious
  • Remarkable; prodigious.
  • Audacious; gutsy.
  • Completely; extremely.
  • Audaciously; boldly.
  • Impressively great in size; enormous; extraordinary.
This word is probably from the dialectal 'boldacious,' a blend of 'bold' and 'audacious.'
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