SPACE PHOTOS THIS WEEK: Apollo 11, Mars Devils, More

SPACE PHOTOS THIS WEEK: Apollo 11, Mars Devils, More
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July 21, 2009--Near-infrared images taken by the Keck II telescope show a bright spot on Jupiter's southern hemisphere, bolstering previous suggestions that the planet's newest mark is a "bruise" created by an unseen impact.

Initially estimated to be as wide as Earth, scientists now say the mark is about the size of the Pacific Ocean. The spot appears dark in visible light, but seems to glow in near-infrared due to reflective particles suspended high in Jupiter's relatively clear stratosphere--a strong indication of an impact.
— Image courtesy Paul Kalas (UCB), Michael Fitzgerald (LLNL/UCB), Franck Marchis (SETI Institute/UCB), James Graham (UCB)
 
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