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The exoplanet HD 189733b lies so near its star that it completes an orbit every 2.2 days. In late 2011, NASA's Hubble Space Telescope found that the planet's upper atmosphere was streaming away at speeds exceeding 300,000 mph. Just before the Hubble observation, NASA's Swift detected the star blasting out a strong X-ray flare, one powerful enough to blow away part of the planet's atmosphere.
Credit: NASA/Goddard Space Flight Center/Conceptual Image Lab
Michael Lentz (USRA): Lead Animator
Scott Wiessinger (USRA): Producer
Francis Reddy (Syneren Technologies): Writer
