WASHINGTON, Jan. 22 (UPI) -- A new image of a supernova remnant is providing clues about a giant cloud that resembles a beloved endangered species, the Florida manatee, U.S. scientists say.
The cosmic cloud known as W50 formed when a giant star, 18,000 light-years away in the constellation of Aquila, exploded as a supernova around 20,000 years ago.