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| July 03, 2009 |
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our time will build eternity |
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Meteorite Grains Divulge Earth's Cosmic Roots Chicago IL (SPX) Jun 19, 2009 
The interstellar stuff that became incorporated into the planets and life on Earth has younger cosmic roots than theories predict, according to the University of Chicago postdoctoral scholar Philipp Heck and his international team of colleagues. Heck and his colleagues examined 22 interstellar grains from the Murchison meteorite for their analysis. Dying sun-like stars flung the Murchison ... read moreMeteorite Grains Divulge Earth's Cosmic Roots 
Chicago IL (SPX) Jun 17, 2009The interstellar stuff that became incorporated into the planets and life on Earth has younger cosmic roots than theories predict, according to the University of Chicago postdoctoral scholar Philipp Heck and his international team of colleagues. Heck and his colleagues examined 22 interstellar grains from the Murchison meteorite for their analysis. Dying sun-like stars flung the Murchison ... more
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Meteorite Bombardment May Have Made Earth More Habitable
London, UK (SPX) Jun 02, 2009Large bombardments of meteorites approximately four billion years ago could have helped to make the early Earth and Mars more habitable for life by modifying their atmospheres, suggests the results of a paper published in the journal Geochimica et Cosmochima Acta. When a meteorite enters a planet's atmosphere, extreme heat causes some of the minerals and organic matter on its outer crust ... more Searching For Meteorites In The Deserts Of Oman 
Moffett Field CA (SPX) May 20, 2009Meteorites provide valuable information about the early history of the solar system. A group of Swiss geologists have conducted systematic meteorite searches in Oman since 2001, and they recently returned from their latest hunt. Most meteorites are fragments of asteroids, some of which contain organic matter. Some meteorites preserve information on the chemical make-up of the solar system ... more Can We Predict When An Asteroid Will Impact Earth 
Bonn, Germany (SPX) May 19, 2009Objects with orbits that bring them near to Earth are potential killers. These objects, known as NEOs (Near-Earth Objects), are asteroids (see the astronomy question from week 19: Where is the planet between Mars and Jupiter?) or comets, which we can recognise when they are in the vicinity of the Sun by their characteristic tail. If these small heavenly bodies cross Earth's orbit while the ... more New Evidence That Meteorite Did Not Wipe Out Dinosaurs 
Princeton NJ (SPX) May 05, 2009A Princeton University geoscientist who has stirred controversy with her studies challenging a popular theory that an asteroid wiped out the dinosaurs has compiled powerful new evidence asserting her position. Gerta Keller, whose studies of rock formations at many sites in the United States, Mexico and India have led her to conclude that volcanoes, not a vast meteorite, were the more likel ... more |
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NASA Team Finds Riches In Meteorite Treasure Hunt
Washington DC (SPX) Mar 30, 2009Just before dawn on Oct. 7, 2008, an SUV-sized asteroid entered Earth's atmosphere and exploded harmlessly over the Nubian Desert of northern Sudan. Scientists expected the asteroid, called 2008 TC3, had blown to dust in the resulting high-altitude fireball. What happened next excited the scientific community. Peter Jenniskens, a meteor astronomer with the SETI Institute in Mountain ... more Surprise Recovery Of Meteorites Following Asteroid Impact 
Mountain View CA (SPX) Mar 26, 2009Fortunately, it wasn't large enough to require intervention by Bruce Willis, but asteroid 2008 TC3 is the first space rock to have been spotted before it crashed to Earth. It streaked into the skies over northern Sudan in the early morning of October 7, 2008, and then exploded at a high 37 km above the Nubian Desert, before the atmosphere could slow it appreciably. It was believed that the ... more Another Space-Rock Buzzes Earth 
Washington DC (SPX) Mar 20, 2009Just two weeks after Near Earth Object 2009 DD45 buzzed the Earth at a distance of only 40,000 miles, another sizable space rock, designated 2009 FH, passed nearly as close. According to the Jet Propulsion Laboratory's NEO Program the object came closest to the Earth at 5:17am Pacific time (12:17 Universal Time) on Wednesday, March 18, 2009, passing at a distance of 79,000 kilometers (49,000 mil ... more Space rock gives Earth a close shave 
Paris (AFP) March 3, 2009An asteroid of a similar size to a rock that exploded above Siberia in 1908 with the force of a thousand atomic bombs whizzed close past Earth on Monday, astronomers said on Tuesday. 2009 DD45, estimated to be between 21 and 47 meters (68 and 152 feet) across, raced by at 1344 GMT on Monday, the Planetary Society and astro ... more |
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