Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2009 December 7
See Explanation.  Clicking on the picture will download
 the highest resolution version available.

The International Space Station Over the Horizon
Credit: STS-129 Crew, Expedition 21 Crew, NASA

Explanation: This was home. Just over a week ago, the STS-129 crew of the Space Shuttle Atlantis undocked from the International Space Station (ISS) and returned to Earth. As the shuttle departed the space station, they took the above image. Visible on the ISS are numerous modules, trusses, and long wing-like solar panels. The space shuttle crew spent almost 12 days calling the space station home. The shuttle crew resupplied the space station and delivered valuable spare parts. The ISS continues to be home for five astronauts of Expedition 21. The ISS's crew now includes astronauts representing NASA, the European Space Agency, the Russian Federal Space Agency, and the Canadian Space Agency.

New Mirror: APOD now available (again) in Portuguese from Brazil
Tomorrow's picture: white moon

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