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Exoplanet Study Suggests our Solar System is the Norm
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| Topic: Cosmic Evolution |
04/14/12 |
| Summary: A new study reveals that planetary orbits around Sun-like stars have a tendency to be strongly aligned, similar to the disk-like alignment of the planets in our own solar system. |
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Dusty Disc Created by Crushed Comets
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| Topic: Cosmic Evolution |
04/13/12 |
| Summary: The ring of dust around the nearby star Fomalhaut could be created by the collisions of thousands of comets every day. |
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When Stellar Metallicity Sparks Planet Formation
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| Topic: Cosmic Evolution |
04/09/12 |
| Summary: New research predicts the criteria needed for Earth-like planets to form around a star that have one-tenth the metallicity of our Sun. If researchers find small, rocky planets orbiting stars with lower metallicity, it may challenge the presently accepted "core accretion" model of planetary formation. |
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Planet Starship
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| Topic: Cosmic Evolution |
03/24/12 |
| Summary: New research shows that planets can be tossed out of galaxies at extremely high speeds - up to 30 million miles per hour. These 'runaway' planets would be some of the fastest objects in the galaxy. |
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The Interiors of Ice Giant Planets
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| Topic: Cosmic Evolution |
03/23/12 |
| Summary: A new study shows that current extimates of ice-giant planetary interiors overstate water's compressibility by as much as 30 percent. The findings could dramatically change our understanding of the physical properties of such worlds. |
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Some Orbits are More Popular Than Others
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| Topic: Cosmic Evolution |
03/21/12 |
| Summary: New research has provided an explanation for a question that has long puzzled astronomers: why do gas giant planets appear to prefer to occupy certain regions in mature solar systems? |
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The Infrared Sky
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| Topic: Cosmic Evolution |
03/19/12 |
| Summary: NASA has unveiled a new atlas and catalog of the entire infrared sky showing more than a half billion stars, galaxies and other objects. |
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A New Model for Planet Formation
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| Topic: Cosmic Evolution |
03/03/12 |
| Summary: A new model could help explain how our solar system formed. The three-dimensional model examines the possibility that planets were created at essentially the same time as the Sun - during the collapse of the pre-solar nebula. |
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Galaxy May Swarm with Nomad Planets
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| Topic: Cosmic Evolution |
02/29/12 |
| Summary: A new study shows that our galaxy could host 100,000 times more 'nomad planets' than stars. These wandering planets drift through space instead of orbiting a star, and could change our understanding of life's potential in the Universe. |
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