• January 27, 2011

    Episode 316: Carbon-Rich Planet

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    Astronomers are interested in finding out about the composition of the distant worlds now being discovered. A new observation from the Spitzer Space Telescope, combined with ground-based observations from the Canada-France-Hawaii telescope, reveals a planet that has an unusual amount of carbon in it. Its discovery highlights suggests that smaller, rocky planets made of carbon could exist. If so, they would contain graphite, diamond and tar.