Sep 11, 2013 09:30 AM EDT
Comet Hides in Plain Sight: Don Quixote Isn't an Asteroid
A large, near-Earth asteroid has flown through space for the past 30 years. Known as 3552 Don Quixote, this asteroid's journey stretches to the orbit of Jupiter. Now, scientists have made a surprising discovery. This asteroid isn't an asteroid. It is, in fact, a comet.