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Did a Comet Kill the Dinosaurs?
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| Topic: Meteorites, Comets and Asteroids |
04/07/13 |
| Summary:
Most scientists believe that the extinction of the dinosaurs was brought about by an asteroid impact. However, a new study favors a different explanation. Instead, the impact may have been caused by a high-velocity comet. |
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Turbulence in Planet-Forming Disks
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| Topic: Cosmic Evolution |
04/06/13 |
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A new research project is focusing on two challenges in the quest to understand turbulence in protoplanetary disks and the role that it plays in planet formation. |
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Complex Chemistry in Titan's Lower Atmosphere
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| Topic: Titan |
04/06/13 |
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Scientists previously thought that chemistry in Titan's atmosphere became more inert closer to the surface. Now, a new study suggests that complex organic chemistry that could lead to the building blocks of life extends lower in the moon's atmosphere than previously thought. |
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Lunar Minerals Survive Impact Shock
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| Topic: Moon to Mars |
04/05/13 |
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A new study indicates that impacts on the Moon may not wipe out mineralogical signature found in the pre-impact rocks. |
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Tadpole Shrimp Challenge Idea of "Living Fossils"
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| Topic: Origin & Evolution of Life |
04/04/13 |
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A new study on tadpole shrimps calls into question the use of the term 'living fossil.' Tadpole shrimp resemble ancient fossils, but the study shows that they are much younger in terms of their evolutionary history. |
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Sending Unmanned Aircraft to Investigate Volcanoes
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| Topic: Geology |
04/03/13 |
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NASA researchers have deployed repurposed military UAVs to study a volcano. The technology could be effective for gathering data about volcanic ash and gases from otherwise inaccessible locations. |
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NASA Mission Will Track Earth's Ozone
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| Topic: Earth |
04/03/13 |
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Life as we know it on Earth would not be possible without the fragile layer of ozone 25 km above our planet's surface. NASA is now preparing to launch the most sophisticated space-based ozone sensor ever. |
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Dawn is in Silent Pursuit of Ceres
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| Topic: Meteorites, Comets and Asteroids |
04/02/13 |
| Summary:
NASA's Dawn spacecraft left the protoplanet Vesta six months ago and is now traveling through the depths of the main asteroid belt in pursuit of the dwarf planet Ceres. |
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