How to see China’s Tiangong space station and the ISS in the predawn sky this week

During this upcoming week, skywatchers across most of the U.S. and southern Canada will get an opportunity to view the two largest space vehicles now in orbit around the Earth within minutes of each other.

They are the International Space Station (ISS) and China’s space station, Tiangong. If you are up during the predawn hours, you’ll probably be able to make a sighting of both within less than a half hour of each other.

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