NASA: 7 Earth-Size Worlds Found Orbiting Star; Could Hold LifeFor the first time, astronomers have discovered seven Earth-size planets orbiting a nearby star -- and these new worlds could hold life.
Gene Cernan, Last Person To Walk On The Moon, Dies At 82Cernan was commander of NASA's Apollo 17 mission and on his third space flight when he set foot on the lunar surface.
SpaceX Launches First Rocket Since September ExplosionAbout nine minutes after the rocket blasted off, to cheers from the control room, its jettisoned first stage landed upright on a so-called droneship in the Pacific Ocean south of Vandenberg -- part of Spacex's effort to make boosters reusable.
NASA: Upcoming 'Supermoon' Closest Full Moon To Earth In 69 YearsAccording to NASA, a supermoon like this won't happen again for another 18 years, with the next one projected to occur on Nov. 25, 2034.
Astronaut Jeffrey Williams Marks 521st Day In Space, A New U.S. RecordBy the time Williams returns to Earth in two weeks, he will have logged 534 days off the planet for NASA.
NASA Spacecraft Juno Enters Jupiter OrbitGround controllers at the NASA Jet Propulsion Laboratory and Lockheed Martin erupted in applause when the solar-powered spacecraft beamed home news that it was circling Jupiter's poles.
Welcome Home! Astronaut Scott Kelly Returns To Earth After Spending 340 Days In SpaceAstronaut Scott Kelly is back on Earth after a year's journey that was literally out of this world.
NASA: Strong Evidence Water Flows On MarsMars appears to have flowing streams of salty water, at least in the summer, scientists reported Monday in a finding that could have major implications for the possibility of life on the planet.
Announcement Of 'Major Science Finding' About Mars Fuels SpeculationNASA reported in a dramatic posting on its website Sunday that it will soon announce that a mystery about Mars has been solved.
Intrepid Hosts 4th Annual Space & Science FestivalFormer NASA astronaut Col. Pamela Melroy will speak at the event Sunday afternoon.
Pluto Up Close: NASA Spacecraft Makes Successful Flyby Of PlanetIn a day of both jubilation and tension, scientists waited anxiously Tuesday for NASA's New Horizons spacecraft to send word across 3 billion miles and confirm it got humanity's first up-close look at Pluto.
NASA Marking 25th Anniversary Of Launch Of Hubble Space TelescopeHubble rocketed into space on April 24, 1990 aboard space shuttle Discovery. It orbits about 350 miles above the Earth.