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Black Trees Under Two Suns
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| Topic: Alien Life |
04/22/11 |
| Summary: How would life on planets in binary star systems evolve? Earth-like planets with two or three suns would have multiple sources of light that could be used for photosynthesis. |
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Extraterrestrial DJs: spinning tunes for the stars
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| Topic: Alien Life |
04/21/11 |
| Summary: Would extraterrestrials like to listen to our music? A new collaboration between science and music has created musical messages that might one day be sent to alien worlds. |
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Earths Orbiting White Dwarfs
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| Topic: Alien Life |
04/02/11 |
| Summary: A new study indicates that the best place to look for habitable planets might be around dim, dying stars called white dwarfs. |
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Searching for Alien Life? Try Failed Stars
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| Topic: Alien Life |
03/31/11 |
| Summary: Free-floating planets and sub-brown dwarfs – objects with mass midway between planets and stars – could prove fertile grounds for extraterrestrial life, according to a new study. |
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Rethinking Habitability
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| Topic: Alien Life |
10/25/10 |
| Summary: Astronomers are re-thinking the requirements that need to be met for an exoplanet to be considered 'habitable.' A new simulation of the Gliese 581 system is helping astrobiologists refine their search for Earth-like worlds in the Universe. Gleise 581 recently made news because a planet could be orbiting within the system's habitable zone. |
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Astronomer Seeks ET Machines
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| Topic: Alien Life |
10/01/10 |
| Summary: If we ever do receive a message from outer space, we´ll want to know what kind of aliens sent it. SETI researcher Seth Shostak says we shouldn´t expect them to be anything like us – in fact, they might not be biological at all, but instead, extraterrestrial machines. |
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Volcanoes on Alien Worlds
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| Topic: Alien Life |
09/08/10 |
| Summary: Volcanoes display the awesome power of Nature like few other events. Now that astronomers are finding rocky worlds orbiting distant stars, they're asking the next logical questions: Do any of those worlds have volcanoes? And if so, could we detect them? |
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Planets Pulverized in Double-Star Systems
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| Topic: Alien Life |
08/25/10 |
| Summary: A new study using data from the Spitzer Space Telescope has shown that double-star systems may not be good places to search for life. A large amount of dust in three systems with close-orbiting stars could be the result of tremendous planetary collisions, indicating such systems may be too unstable for habitable planets. |
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Finding Frugal Aliens
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| Topic: Alien Life |
07/23/10 |
| Summary: For 50 years we've been scanning the skies for signals from intelligent aliens. Now, scientists are wondering if there is a better approach. A new theory is bringing economics into the fold with the search for 'cost-optimized' signals from alien civilizations. |
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Odds for Life Better in Photosynthesis Zones
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| Topic: Alien Life |
07/22/10 |
| Summary: By calculating where photosynthesis might be possible around the galaxy, scientists are developing a new way to figure out where Earth-like planets with life might be located. |
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