Finding Another Earth

Kepler's newest planetary find joins a pantheon of planets with similarities to Earth.

July 23, 1999, Chandra X-ray Observatory Awaits Deployment

This 70mm frame shows the 50,162-pound Chandra X-ray Observatory before it was tilted upward for its…

NASA’s Kepler Mission Discovers Bigger, Older Cousin to Earth

NASA's Kepler mission has confirmed the first near-Earth-size planet in the “habitable zone” around a sun-like…

Launch, Docking Returns International Space Station Crew to Full Strength

Three crew members representing the United States, Russia and Japan have arrived at the International Space…

Soyuz Rocket Boosts Expedition 44 Crew to the International Space Station

The Soyuz TMA-17M launched from the Baikonur Cosmodrome in Kazakhstan to the International Space Station at…

NASA Invites Media to 2015 Unmanned Aircraft Systems Traffic Management Convention

NASA and the Silicon Valley Chapter of the Association of Unmanned Vehicle Systems International will cosponsor…

Smoke Over the Greenland Sea

The 2015 wildfire season in the Arctic has been very intense – and very smoky. As…

NASA Views Complex World: New Horizons Pluto Science Update Set for July 24

Members of NASA’s New Horizons team will hold a science update at 2 p.m. EDT Friday,…

NASA’s New Horizons Finds Second Mountain Range in Pluto’s ‘Heart’

Pluto’s icy mountains have company. NASA’s New Horizons mission has discovered a new, apparently less lofty…

NASA Hosts Media Teleconference to Announce Latest Kepler Discoveries

NASA will host a news teleconference at 12 p.m. EDT Thursday, July 23 to announce new…