If you spend time gazing at the stars on a clear night, you're guaranteed to see a satellite or two passing among them. But how do you know what you've seen?
The Best Mobile Apps for Spotting and Identifying Orbiting Satellites and Iridium Flares
SPACE.com - 31 Aug 2018 13:00
If you spend time gazing at the stars on a clear night, you're guaranteed to see a satellite or two passing among them. But how do you know what you've seen?
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