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Dead Stars 'Polluted' with Planet Debris
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| Topic: Cosmic Evolution |
05/14/13 |
| Summary: 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 |
| Summary: 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 |
| Summary: 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 |
| Summary: 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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Calculating the Odds of Habitable Worlds Nearby
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| Topic: Cosmic Evolution |
03/16/13 |
| Summary: A new study shows that the number of potentially habitable planets in the Universe is greater than previously thought. The study focuses on Earth-sized planets in the habitable zones of low-mass stars. |
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Closest Star System Found in a Century
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| Topic: Cosmic Evolution |
03/15/13 |
| Summary: Scientists have reported that a newly discovered binary star system is the third-closest star system to the Sun. In fact, the brown dwarf stars are the closest star system discovered since 1916. |
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Searching for the Solar System's Chemical Recipe
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| Topic: Cosmic Evolution |
03/04/13 |
| Summary: Scientists are uncovering new information about how the Solar System evolved by studying the origins of different isotope ratios among the elements that make up objects like planets and moons in our system. |
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