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Super-Earth Sought and Found
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| Topic: New Planets |
06/13/05 |
| Summary: Taking a major step forward in the search for Earth-like planets beyond our own solar system, a team of astronomers has announced the discovery of the smallest extrasolar planet yet detected. |
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Backyard Astronomers Discover Planet
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| Topic: New Planets |
05/26/05 |
| Summary: An international collaboration featuring Ohio State University astronomers has detected a planet in a solar system that, at roughly 15,000 light years from Earth, is one of the most distant ever discovered. |
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Clues to Molding Planets
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| Topic: New Planets |
05/23/05 |
| Summary: The detailed measurements of dusty disks around young stars confirm a new theory that the region where rocky planets such as Earth form is much farther away from the star than originally thought. These definitive measurements of planet-forming zones offer important clues to initial conditions that give birth to planets. |
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First Light from Faraway Planet
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| Topic: New Planets |
04/30/05 |
| Summary: An international team of astronomers reports today confirmation of the discovery of a giant planet, approximately five times the mass of Jupiter, that is gravitationally bound to a young brown dwarf. This topic has spawned a year long discussion on the nature of this object. |
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Questioning Terrestrial Planets
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| Topic: New Planets |
04/27/05 |
| Summary: Looking for biosignatures that would be characteristic of intelligent life is not always about extrapolating the most intelligent things a species might be doing. For instance, would one look for pollutants in the atmosphere? |
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Crunching the Numbers
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| Topic: New Planets |
04/18/05 |
| Summary: Maggie Turnbull, an astronomer with the Carnegie Institution, has spent many years thinking about what kind of stars could harbor Earth-like planets. Her database of potentially habitable star systems could be used as a target list for NASA's forthcoming Terrestrial Planet Finder (TPF) mission. |
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Explaining Eccentricities
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| Topic: New Planets |
04/15/05 |
| Summary: When astronomers discovered that the planets around Upsilon Andromedae had very strange orbits, they weren't sure what could have caused it. Researchers from Berkeley and Northwestern have developed a simulation that shows how an additional planet could have given the other planets the orbital kick. |
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The Wolf: New Planet or Brown Dwarf Star?
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| Topic: New Planets |
04/12/05 |
| Summary: Located in the Lupus I (the Wolf) cloud, a region of star formation about 400 or 500 light-years away, a young T-Tauri star may be either a new planet or a failed star. Although the borderline between the two is still a matter of debate, one way to distinguish between the two is by their mass. |
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Surfing the Wavelengths
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| Topic: New Planets |
04/11/05 |
| Summary: Maggie Turnbull, an astronomer with the Carnegie Institution, has spent many years thinking about what kind of stars could harbor Earth-like planets. Her database of potentially habitable star systems could be used as a target list for NASA's upcoming Terrestrial Planet Finder (TPF) mission. |
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Dying Stars, Melting Planets
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| Topic: New Planets |
03/29/05 |
| Summary: Dying stars may warm previously frozen worlds around them to the point where liquid water temperature exists long enough for life to form, according to a new analysis of the evolution of habitable zones around stars by an international team of astronomers. |
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