New readings from the European Space Agency’s Rosetta mission have challenged the theory that comets brought water to Earth in a series of cataclysmic collisions during the solar system’s chaotic youth.
Scientists analyzing imagery from NASA’s Curiosity Mars rover believe sediments left by an ancient lake more than three billion years ago formed a towering mountain that is set to be the robot’s research subject for the rest of its mission on the red planet.
Fresh home from a high-flying test flight Friday that took it 3,600 miles above Earth, NASA’s Orion spacecraft was pulled off a U.S. Navy recovery ship Monday night for initial inspections before a cross-country trip to its home base in Florida.
Orbital Sciences Corp. announced Tuesday it selected United Launch Alliance’s Atlas 5 rocket to launch a Cygnus space station resupply mission in late 2015 while the company redesigns its Antares booster with a new engine following a catastrophic failure seconds after liftoff in October.
A U.S. Navy transport ship carrying NASA’s first space-worthy Orion capsule arrived Monday in San Diego, where ground crews will offload the spacecraft for shipment back to its home port at the Kennedy Space Center in Florida.
A recovery team stationed in the Pacific Ocean west of Baja California secured NASA’s Orion spacecraft and winched it into the flooded well deck of a U.S. Navy transport ship after the capsule splashed down into the sea to wrap up a successful four-and-a-half hour test flight.
Two communications satellites rode an Ariane 5 rocket into space Saturday — one to beam down ultra-sharp television programming into millions of American homes and another craft to give Indian citizens expanded access to information technology.
After a two-day delay caused by unfavorable high-altitude winds, an Ariane 5 rocket lifted off Saturday at 3:40 p.m. EST (2040 GMT) from French Guiana with communications satellites for DirecTV and India.