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Spitzer Hears Stellar ‘Heartbeat’ from Planetary Companion

February 14, 2017
News and Features - NASA's Jet Propulsion Laboratory


This illustration shows how the planet HAT-P-2b, left, appears to cause heartbeat-like pulsations in its host star, HAT-P-2.

A planet and a star are having a tumultuous romance that can be detected from 370 light-years away.


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