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Martian Methane Could Come From Rocks |
| The methane in Mars's atmosphere could easily be produced by mineral chemistry, rather than life. That's the claim from a pair of geologists whose calculations suggest that some experts have been too quick to assume a bacterial source for the gas - Nature |
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Brown-Dwarf Binary May Challenge Theories |
| At this week's American Astronomical Society meeting in Minneapolis, Minnesota, Vanderbilt University astronomer Yilen Gómez Maqueo Chew and five colleagues presented detailed observations of the first known eclipsing binary system containing two brown dwarfs — starlike gas balls not quite massive enough to sustain nuclear fusion in their cores - Sky and Telescope |
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Galactic Neighbour Gets Supersized |
| Andromeda, the nearest large galaxy, has been found to be almost three times wider than astronomers thought. Previous estimates had suggested that the spiral galaxy, also known as M31, was about 75,000 light years across - Nature |
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Comet Put On List Of Potential Earth Impactors |
| A comet has been added to the list of potentially threatening near-Earth objects maintained by NASA's Jet Propulsion Laboratory - New Scientist |
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NASA Sees Orbiting Stars Flooding Space With Gravitational Waves |
| A scientist using NASA's Chandra X-ray Observatory has found evidence that two white dwarf stars are orbiting each other in a death grip, destined to merge - NASA |
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NASA Telescope Catches Surprise Ultraviolet Light Show |
| At 2 p.m. Pacific time on April 24, 2004, the detectors on NASA's Galaxy Evolution Explorer ultraviolet space telescope nearly overloaded when the star abruptly brightened by a factor of at least 10,000 - NASA/JPL |
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Fertilizer From The Stars |
| The explosion of a star in our cosmic neighbourhood may not sound like good news for life on Earth. But a team of US researchers says that just such a catastrophe could have showered our planet with fertilizer that helped plants to colonize the land about 440 million years ago - Nature |
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Skewed Supernovae Spawn GRBs? |
| "This is the first time that researchers have found a supernova that might be a GRB, rather than a GRB that might be a supernova" - astronomers say - Astronomy |
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European Experiments Successfully Launched Aboard Foton Spacecraft |
| An unmanned Foton-M spacecraft carrying a mainly European payload was put into orbit by a Russian Soyuz-U launcher today [May 31] at 14:00 Central European Time (18:00 local time) from the Baikonur Cosmodrome in Kazakhstan - ESA |
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NASA Seeks Answer To Life, The Universe And Everything |
| An advisory panel has set four ambitious objectives for NASA as it addresses the big questions of life, the universe, and everything - New Scientist |
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