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How Stable is Earth's System?
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| Topic: Earth |
06/19/13 |
| Summary: The Earth system includes intricate interactions between everything from our planet's dynamic climate to geological and biological processes. A new study is helping astrobiolgists understand just how stable the Earth system is. |
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Martian Dune Marks Could Be Made By Dry Ice, Not Water
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| Topic: Mars |
06/18/13 |
| Summary: A new study shows that hunks of frozen carbon dioxide (or dry ice) could create marks on martian sand dunes by gliding down the slope on cushions of gas. The study could help interpret whether or not certain structures on Mars are formed by flowing liquid water or other natural processes. |
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The Next Step for Astrobiology’s Roadmap
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| Topic: Missions |
06/17/13 |
| Summary: The Astrobiology Program has completed the first phase of development for the next Astrobiology Roadmap. Over 500 participants joined in webinars and discussions that will shape the future of astrobiology research at NASA. Today, experts will gather for a workshop to discuss the results of the online events. |
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Star's 'Dust Trap' May Solve Planet Formation Mystery
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| Topic: Cosmic Evolution |
06/15/13 |
| Summary: Astrobiologists using the Atacama Large Millimeter/submillimeter Array (ALMA) telescope have uncovered new clues about how rocky planets form and evolve from disks of gas and dust. |
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Meteorite Phosphorus Aided Life on Early Earth
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| Topic: Meteorites, Comets and Asteroids |
06/14/13 |
| Summary: New research shows that a key element for life on Earth was delivered to our planet on meteorites. The heavy bombardment of meteorites during the Hadean and Archean eons provided reactive phosphorus that could have been incorporated into prebiotic molecules. |
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Precious Opals Shine a Light on Mars
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| Topic: Mars |
06/13/13 |
| Summary: Research that sheds light on how Australian opals formed indicates the red dirt in the land Down Under might be similar to the red surface of Mars. |
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Martian Clay Contains Chemicals Implicated in Origin of Life
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| Topic: Mars |
06/12/13 |
| Summary: Astrobiologists have discovered high concentrations of boron in a martian meteorite. Boron may have played a key role in the formation of RNA, a molecule that could have played an important role in the origin of life. |
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Stellar Winds May Electrify Planets
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| Topic: Cosmic Evolution |
06/11/13 |
| Summary: A new model suggests that some exoplanets may be heated by electric currents linked to their host stars. The phenomenon arises from interactions between a planet's magnetic field and the hot charged wind from its star. |
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