The Mars rover InSight will not launch as scheduled in March. A seismometer it was supposed to carry has experienced a series of vacuum leaks and cannot be repaired in time.
A handout picture made available by SpaceX shows a Falcon 9 rocket landing upright at Cape Canaveral Air Force Station in Florida. SpaceX successfully returned a rocket to Earth following Monday's satellite launch after two earlier attempts failed.
A photographer looks at the sky at night to see the annual Geminid meteor shower on the Elva Hill, in Maira Valley, near Cuneo, northern Italy on December 12, 2015.
Marco Bertorello/AFP/Getty Images
Ceres, with bright spots in its Occator Crater, is seen here in a "false color" image that reflects its surface composition. New analysis says the spots are caused by a type of salt.
Pluto's shoreline of Sputnik Planum is seen in the highest-resolution images yet to come from New Horizons. John Spencer of the Southwest Research Institute says the details support the idea that the mountains "are huge ice blocks that have been jostled and tumbled and somehow transported to their present locations."
The U.K. coastguard and local boatmen recovered a piece of metal from the sea off the Isles of Scilly in Britain. The debris is likely from the U.S. rocket SpaceX Falcon 9, which blew up after takeoff in June.