ScienceDaily: Astronomy News |
- Water on Moon, Earth came from same primitive meteorites
- Moon and Earth have common water source
- Dead stars 'polluted' with planetary debris: Signs of Earth-like planets found
| Water on Moon, Earth came from same primitive meteorites Posted: 09 May 2013 11:21 AM PDT The water found on the moon, like that on Earth, came from small meteorites called carbonaceous chondrites in the first 100 million years or so after the solar system formed, researchers from have found. |
| Moon and Earth have common water source Posted: 09 May 2013 11:20 AM PDT New research finds that water inside the moon's mantle comes from the same source as water on Earth. The Moon is thought to have formed after a giant impact to a still-forming Earth 4.5 million years ago. These new findings suggest that Earth may have had water at the time of that impact, and some of that water may have been transferred to the moon. |
| Dead stars 'polluted' with planetary debris: Signs of Earth-like planets found Posted: 09 May 2013 09:36 AM PDT Astronomers have found signs of Earth-like planets in an unlikely place: the atmospheres of a pair of burnt-out stars in a nearby star cluster. The white dwarf stars are being polluted by debris from asteroid-like objects falling onto them. This discovery suggests that rocky planet assembly is common in clusters, say researchers. |
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