3. Planetpalooza

A new crop of alien planets raises the bar on bizarre.

By Stephen Ornes
Dec 12, 2007 6:00 AMNov 12, 2019 6:21 AM

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Its name doesn’t exactly roll off the tongue, but HD 189733b is the planet of the year. A gas giant orbiting a yellow dwarf star roughly 63 light-years away, HD 189733b is the first exoplanet—short for extrasolar planet—for which astronomers have been able to produce a weather map. That map was created in May by a team led by Heather Knutson at Harvard University.

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