HubbleSite -- Out of the ordinary...out of this world.Learn more about the constellations you can observe in the night sky during the month of November. Watch the Video
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. 2024 December 23 Explanation: It was December and the sky lit up like a Christmas tree. Shimmering, the vivid green, blue, and purple auroral colors that formed the tree-like apparition were caused by high atmospheric oxygen and
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NASA Human Space Flight Gallery
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