MOSCOW, April 4 (UPI) -- Russia says its Roscosmos space agency may join NASA in an ambitious mission to capture an asteroid and bring it to a lunar orbit for exploration.
The asteroid-retrieval proposal -- to capture a 25-foot, 500-ton asteroid in a net and tow it to an orbit around the moon -- was first proposed last year by the Keck Institute for Space Studies at the California Institute of Technology in Pasadena.