Researchers have found evidence of the world that crashed into the Earth billions of years ago to form the Moon.
Astronomers studying two classes of black-hole-powered galaxies have found evidence that they represent different sides of the same cosmic coin.
NASA's flying saucer-shaped test vehicle is ready to take to the skies from the U.S. Navy's Pacific Missile Range Facility in Kauai, Hawaii, for its first engineering shakeout flight.
Astronomers have discovered a rocky planet that weighs 17 times as much as Earth and is more than twice as large in size.
Before Apollo astronauts went to the moon, they went to Hawaii to train on the Big Island's lunar landscapes.
In a test yesterday, NASA demonstrated that it can land an unmanned spacecraft on a rugged planetary surface in the pitch dark.
Scientists combined observations from two NASA missions to check out the moon’s lopsided shape and how it changes under Earth’s sway – a response not seen from orbit before.
Scientists working with data from NASA’s Cassini mission have developed a new way to understand the atmospheres of exoplanets by using Saturn’s smog-enshrouded moon Titan
Astronomers using the NASA/ESA Hubble Space Telescope have captured new images of the dancing auroral lights at Saturn’s north pole.
In deep space, floating between the stars, lies an abundance of atoms -- carbon, oxygen, hydrogen -- that over millions of years will grow into new stars and new planets.
NASA and its international partners now have the go-ahead to begin construction on a new Mars lander, after it completed a successful Mission Critical Design Review on Friday.
The rim surrounding Endeavour Crater on Mars recedes southward, then sweeps around to the east in a vista obtained by NASA's Mars Exploration Rover Opportunity.
The target of ESA’s Rosetta mission has started to reveal its true personality as a comet, its dusty veil clearly developing over the past six weeks.
Russia, a critical partner in the operation of the International Space Station, is threatening to stop its work on the station by 2020.
15-28 of 288