View Full Version : This Exoplanet Has Prematurely Aged its Star

2014-Sep-18, 04:00 PM
Hot young stars are wildly active, emitting huge eruptions of charged particles form their surfaces. But as they age they naturally become less active, their X-ray emission weakens and their rotation slows. Astronomers have theorized that a hot Jupiter a sizzling gas giant circling close to its host star might be able to […]

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