With the Space Shuttle Endeavour scheduled to undock from the International Space Station (ISS) on Friday evening, skywatchers across much of the United States and southern Canada are in for a real treat early on Saturday and Sunday morning.

This week the New York metro area will have three great opportunities to see the Space Shuttle Discovery and the International Space Station flying in tandem across our evening sky.

How to see passing satellites and the space station from your own backyard.

See the International Space Station pass over the New York City metropolitan area on November 22, 2008.