A newly discovered asteroid will come so close to Earth next year that it actually passes below many man-made satellites.
The Pentagon's calling for proposals for a fleet of cheap, disposable satellites to give soldiers access to battlefield maps and images.
Astronomers using NASA's Hubble Space Telescope have found several quasars acting as gravitational lenses, making it easier to study the galaxies in which they're contained.
NASA has debuted a new atlas and catalog of the infrared sky, including more than a half billion stars, galaxies and other objects captured by the Wide-field Infrared Survey Explorer (WISE) mission.
Astronomers have known for some time that the earliest galaxies were much smaller than the impressive spiral and elliptical entities which now fill our universe.
Is this a picture of a Death Star-type UFO refueling on the surface of the sun? Well, no.
One of the inventors of the superconducting maglev train is proposing building a bigger, better version than ever before - that could fire out payloads into orbit.
A new study has confirmed that astronauts risk brain and vision abnormalities as a result of spending time in space.
An analysis of meteorite samples has revealed that there's more than one way of building amino acids in space, raising the odds of life elsewhere.
The moon's somewhat bizarre magnetic field may have been shaped by a massive asteroid impact, which left some of its material behind.
Skywatchers along the eastern US should have a ringside seat for a new NASA experiment designed to shed light on the Earth's jet stream winds.
One of the biggest solar storms in years is engulfing the Earth, following two flares that erupted on Tuesday.
The Hercules galaxy cluster - aka Abell 2151 - lies approximately 500 million light-years away in the constellation of Hercules.
Exceptionally high tides caused by a rare conjunction of celestial events could have placed the fateful iceberg in the Titanic's path.
Since last July, NASA’s Dawn spacecraft has been orbiting the asteroid Vesta and transmitting gigabytes of images and other relevant data.
Scientists say they've found more evidence of a major impact by a comet or asteroid, some 13,000 years ago.
Astronomers studying Venus have spotted a type of space weather outburst called a hot flow anomaly (HFA), which causes a temporary reversal of the solar wind that normally flows right past.
Observations from NASA's Cassini spacecraft have revealed an oxygen atmosphere around Saturn's moon Dione.
The numerous faint stars that comprise the Antlia Dwarf galaxy - first discovered in 1997 - are more than four million light-years from Earth.
Astronomers analyzing data from NASA's Hubble Telescope have identified what seems to be a clump of dark matter left behind from a collision between massive clusters of galaxies.