Astronomy Picture of the Day

Explanation: This sprawling dark marking is Jupiter's latest impact scar, a debris plume created as a small asteroid or comet disintegrated after plunging into the gas giant's atmosphere. Located in Jupiter's south polar region, the new feature was discovered by Australian amateur astronomer Anthony Wesley on July 19. On July 23rd Wesley's discovery was followed up by the Hubble Space Telescope with its newly installed Wide Field Camera 3, creating this sharpest view of the evolving debris plume. Estimates indicate that the impacting object itself was several hundred meters across. Similar impact markings were created when pieces of Comet Shoemaker-Levy 9 slammed into Jupiter's cloud bands in July of 1994.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publications with keywords: Jupiter - impact - comet - asteroid
Publications with words: Jupiter - impact - comet - asteroid
See also:

• Perseid Storm
• Lutetia: The Largest Asteroid Yet Visited
• Stereo Itokawa
• Jupiter from the Stratosphere
• Vesta Near Opposition
• P2010 A2: Unusual Asteroid Tail Implies Powerful Collision
• Watch Jupiter Rotate

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