NASA's Hubble Space Telescope has uncovered the largest known population of globular star clusters, an estimated 160,000
NASA's Voyager 1 spacecraft officially is the first human-made object to venture into interstellar space.
NASA officials say brilliant lights seen at an outdoor rock concert in Alabama and by eyewitnesses as far away as Georgia and Tennessee came from a meteor
Today, Virgin Galactic successfully completed the second rocket-powered, supersonic flight of its passenger carrying reusable space vehicle, SpaceShipTwo (SS2).
On Friday, Sept. 6, NASA is scheduled to launch a small satellite mission, called the Lunar Atmosphere and Dust Environment Explorer (LADEE)
NASA's black-hole-hunter spacecraft, the Nuclear Spectroscopic Telescope Array, or NuSTAR, has "bagged" its first 10 supermassive black holes.
A monster storm that erupted on Saturn in late 2010 – as large as any storm ever observed on the ringed planet -- has already impressed researchers
Thanks to new technology developed in part at the UA, astronomers can now view objects in the sky at unprecedented sharpness in visible light.
C. Gordon Fullerton, who compiled a distinguished career as a NASA astronaut, research pilot and Air Force test pilot spanning almost 50 years, died Aug. 21.
Ancient Egyptian beads found in a 5,000-year-old tomb were made from iron meteorites that fell to Earth from space
NASA's new short film "Water Falls" invites the public along for the ride as scientists follow water around the globe — on a globe.
NASA's Juno spacecraft is halfway to Jupiter.
On Aug.11 and 12, 2013, the annual Perseid meteor shower will peak
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