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SOFIA Seeks Secrets Of Planetary Birth Huntsville AL (SPX) Nov 20, 2009 
You don't always have to have a rocket to do rocket science. Sometimes a mere airplane will do - that is, a mere Boeing 747 toting a 17-ton, 9-foot wide telescope named SOFIA. Short for Stratospheric Observatory for Infrared Astronomy, SOFIA will observe the universe while gliding through the stratosphere at 45,000 feet. When it begins operations next year, it will be the world's biggest ... read moreHunting For Planets In The Dark 
Moffett Field CA (SPX) Nov 20, 2009Dark energy isn't good for life in the universe. This mysterious substance, which cosmologists believe makes up around 70 percent of the universe, may eventually pull apart galaxies, then stars and planets, and finally atoms and molecules, in what some call the Big Rip. It's ironic, then, that the search for dark energy might help in the search for life in the universe. That's because plan ... more
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Subaru Spots Strange Spin
Moffett Field CA (SPX) Nov 19, 2009Two teams of astronomers have found that extrasolar planet HAT-P-7b, discovered in 2008, has a retrograde or highly tilted orbit. On May 30, 2009, a Japanese collaboration team led by Norio Narita (National Astronomical Observatory of Japan) used the Subaru Telescope's High Dispersion Spectrograph (HDS) to observe the HAT-P-7 planetary system, which is about 1000 light-years distant from ... more Exoplanets Clue To Sun's Curious Chemistry 
Paris, France (SPX) Nov 18, 2009A ground-breaking census of 500 stars, 70 of which are known to host planets, has successfully linked the long-standing "lithium mystery" observed in the Sun to the presence of planetary systems. Using ESO's successful HARPS spectrograph, a team of astronomers has found that Sun-like stars that host planets have destroyed their lithium much more efficiently than "planet-free" stars. ... more Discovery Of A Retrograde Or Highly Tilted Exoplanet 
Tokyo, Japan (SPX) Nov 18, 2009Two teams of astronomers have found that extrasolar planet HAT-P-7b, discovered in 2008, has a retrograde or highly tilted orbit. On UT May 30, 2009, a Japanese collaboration team led by Norio Narita (National Astronomical Observatory of Japan) used the Subaru Telescope's High Dispersion Spectrograph (HDS) to observe the HAT-P-7 planetary system, which is about 1000 light-years distant from Eart ... more Exoplanet House Of Horrors 
Washington DC (SPX) Nov 02, 2009Astronomers may be closer than ever to discovering a planet that's habitable like our own, but along the way they've discovered some very scary exoplanets - places where conditions are far too harsh for life as we know it to exist. We've rounded up some of the most frightening, deadly exoplanets, places that make even the scariest haunted house on Earth pale in comparison. ... more |
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How Do We Know That Planets Exist Outside Our Solar System
Bonn, Germany (SPX) Oct 13, 2009Even in ancient times, people observed the planets that orbit our Sun. (See also the astronomy question from week 1: Why are there seven days in a week?) Nowadays we know that there are many trillions of other stars in the Universe, in addition to the Sun. It seems likely that planets orbit many of these stars too. The evidence that extrasolar planets (exoplanets for short) exist was ... more Simulation Suggests Rocky Exoplanet Has Bizarre Atmosphere
St Louis MO (SPX) Oct 01, 2009So accustomed are we to the sunshine, rain, fog and snow of our home planet that we find it next to impossible to imagine a different atmosphere and other forms of precipitation. To be sure, Dr. Seuss came up with a green gluey substance called oobleck that fell from the skies and gummed up the Kingdom of Didd, but it had to be conjured up by wizards and was clearly a thing of magic. ... more NASA's Spitzer Spots Clump Of Swirling Planetary Material 
Pasadena CA (SPX) Sep 25, 2009Astronomers have witnessed odd behavior around a young star. Something, perhaps another star or a planet, appears to be pushing a clump of planet-forming material around. The observations, made with NASA's Spitzer Space Telescope, offer a rare look into the early stages of planet formation. Planets form out of swirling disks of gas and dust. Spitzer observed infrared light coming from one ... more Spitzer Spots Clump Of Swirling Planetary Material 
Pasadena CA (JPL) Sep 24, 2009Astronomers have witnessed odd behavior around a young star. Something, perhaps another star or a planet, appears to be pushing a clump of planet-forming material around. The observations, made with NASA's Spitzer Space Telescope, offer a rare look into the early stages of planet formation. Planets form out of swirling disks of gas and dust. Spitzer observed infrared light coming from one ... more |
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