We already knew about Venus. We had our suspicions about Mars. Now we're sure.
The global space industry is reeling after three cargo disasters in less than a year have delivered a costly blow to efforts to supply astronauts aboard the International Space Station.
An experiment to grow lettuce in space and a massive parking station for future spaceships are aboard SpaceX's unmanned Dragon cargo capsule, poised for a Sunday launch.
SpaceX stands ready to launch a much-needed load of supplies to the International Space Station this weekend on the heels of a failed supply run by Russia.
The day will officially be a bit longer than usual on Tuesday, June 30, 2015, because an extra second, or "leap" second, will be added.
Fancy a meteor shower racing across the night sky to mark your birthday? One Japanese start-up is hoping to deliver shooting stars on demand and choreograph the cosmos.
The closer we get to Ceres, the more intriguing the distant dwarf planet becomes. New images of Ceres from NASA's Dawn spacecraft provide more clues about its mysterious bright spots, and also reveal a pyramid-shaped ...
Europe on Tuesday announced its comet-chasing mission Rosetta would be extended until September 2016 and may end with the dying mothership touching down on the comet to be reunited with its tiny lander.
After a year in orbit, the three Swarm satellites have provided a first glimpse inside Earth and started to shed new light on the dynamics of the upper atmosphere – all the way from the ionosphere about ...
A single crescent moon is a familiar sight in Earth's sky, but with Saturn's many moons, you can see three or even more.
If planets had personalities, Mars would be a rock star according to recent preliminary results from NASA's MAVEN spacecraft. Mars sports a "Mohawk" of escaping atmospheric particles at its poles, "wears" ...
MIRO, the Microwave Instrument for the Rosetta Orbiter, first detected the emission from water molecules in the coma of Comet 67P/C-G on 6 June 2014, when Rosetta was 350,000 km from the comet, approximately ...
Next week, a visual and infrared camera designed at Arizona State University will pass 60,000 orbits of the Red Planet.
Europe's robot lab Philae phoned home on Friday after several days silence in its journey towards the Sun on the back of a comet and is "doing very well", the German Aerospace Center (DLR) said.
As a worldwide audience awaits images from NASA's New Horizons spacecraft flyby of Pluto on July 14, NAU scientists already are supporting astronomers' understanding of the dwarf planet's surface.