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Hot Topic
Deep Space
Cosmic Evolution
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Star's 'Dust Trap' May Solve Planet Formation Mystery
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| Topic: Cosmic Evolution |
06/15/13 |
| 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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Stellar Winds May Electrify Planets
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| Topic: Cosmic Evolution |
06/11/13 |
| 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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Kepler Stars and Planets Bigger Than Thought
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| Topic: Cosmic Evolution |
06/09/13 |
| Astronomers using a ground-based telescope to study stars with candidate planets identified by the Kepler mission have revealed that many of the stars, and their planets, are larger than originally thought. The study could have implications in the search for habitable worlds in Kepler data. |
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Dead Stars 'Polluted' with Planet Debris
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| Topic: Cosmic Evolution |
05/14/13 |
| Astronomers have found the building blocks for Earth-sized planets in the atmospheres of burned-out stars. The pair of white dwarfs is being polluted by asteroid-like debris. |
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Retired Star Found with Planets and Debris Disc
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| Topic: Cosmic Evolution |
04/10/13 |
| Astronomers have provided the first images of a dust belt orbiting a star that hosts a planetary system. The belt is formed by dust from colliding comets or asteroids. |
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Turbulence in Planet-Forming Disks
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| Topic: Cosmic Evolution |
04/06/13 |
| 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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Determining the Age of 'Methuselah', the Oldest Known Star
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| Topic: Cosmic Evolution |
03/18/13 |
| Astronomers are a step closer to timing the birth of the oldest known star with a well-determined age. This "Methuselah star" could be as old as 14.5 billion years, which is a dilemma considering the calculated age of the Universe is only 13.8 billion years. |
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