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Satellites


International Space Station
The International Space Station often passes close to the Moon, Sun, and naked-eye planets. Use this tool to plan viewing these close encounters.

ISS's orbit in May
Space-Station Frenzy — May 21, 2008
For a few days each May, you might see the International Space whenever it passes overhead throughout the night.

International Space Station
The International Space Station passes over virtually all of Earth's populated areas, and you can spot it easily with your eyes alone — if you know where and when to look for it.

International Space Station
It’s a bird! It’s a plane! It’s the International Space Station!

Iridium satellite number 35
These communications satellites can briefly outshine Venus as they spray the ground with reflected sunlight.

sunlight twice reflected
It's easy to photograph Iridium flares. Making the photograph visually interesting, however, is more challenging.



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