News tagged with extrasolar planets

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Water Planets

Of the roughly 420 extra-solar planets now known, about a dozen are in the newly named category of "super-earths," planets whose masses are in between of two and about fifteen earth-masses.

Jan 22, 2010 4.6 / 5 (18) 4 | with audio podcast

Astronomy's bright future

To mark UNESCO's International Year of Astronomy (IYA2009), six leading astronomers from the UK, the US, Europe and Asia write in March's Physics World about the biggest challenges and opportunities facing international astron ...

Mar 02, 2009 4.4 / 5 (5) 2