The orbital highways above Earth have been getting more crowded for years, but until February 10 there had been no local big bang.
Two large satellites — a functioning U.S. device and a nonoperating Russian instrument — collided in Earth orbit about 800 kilometers over Siberia on February 10, creating a swarm of some 600 chunks of debris. “This is the first time we’ve had an accidental collision of this magnitude,” says Eugene G. Stansbery, an orbital debris expert at NASA’s Johnson Space Center in Houston.
Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.