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News | Archive (29 August 2007)
Supersonic rain falls on newborn star: Forming solar system deluged with oceans of water
— 17:10 GMT | AstronomyAstronomers at the University of Rochester have discovered five Earth-oceans' worth of water that has recently fallen into the planet-forming region around an extremely young, developing star. Dan Watson, professor of physics and astronomy at the University of Rochester, believes he and his colleagues are the first to see a short-lived stage of protoplanetary disk formation, and the manner in which a planetary system's supply of water arrives from the natal envelope within which its parent star originally formed…
Mars rovers begin atmospheric observations
— 17:10 GMT | AstronomyMars rover scientists have launched a new long-term study on the Martian atmosphere with the Alpha Particle X-ray Spectrometer, an instrument that was originally developed at the University of Chicago. Thanasis Economou, Senior Scientist at Chicago's Enrico Fermi Institute, suggested the new study after observing that the APXS instruments aboard NASA's twin Mars rovers, Spirit and Opportunity, had recorded fluctuations in the argon composition of the Martian atmosphere. 'The amount of argon in the atmosphere is changing constantly,' Economou said…
NASA study will help stop stowaways to Mars
— 17:10 GMT | AstronomyGene sequencing uncovers many more bacteria in super-clean facilities than previous monitoring methods, including newly discovered species. NASA clean rooms, where scientists and engineers assemble spacecraft, have joined hot springs, ice caves, and deep mines as unlikely places where scientists have discovered ultra-hardy organisms collectively known as 'extremophiles.' Some species of bacteria uncovered in a recent NASA study have never been detected anywhere else…
One of the most curious objects in the sky delights astronomers again
— 10:29 GMT | AstronomyEdwin Hubble once called IC 10 'one of the most curious objects in the sky.' It is an irregular galaxy in the constellation Cassiopeia. New observations of the extremely faint, lightweight dwarf galaxy are giving scientists new clues about how populations of stars are born. Though the properties of stars is one of the most well-studied topics in astronomy, scientists still don't fully understand all the mechanisms involved in star formation and evolution, particularly in galaxies with low levels of oxygen, nitrogen and other heavy elements. But scientists studying the IC 10 galaxy may soon understand how stars might have looked like in the distant past, when the universe was in a younger, more pristine form…
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Chaiten Volcano one of scores of active volcanoes in region
Asteroid impact triggered a global hail of carbon beads