21 February 2015, 10:32 AM ET
Two NASA astronauts successfully completed a 6 hour spacewalk that helped prepare the International Space Station for the arrival of private space taxis. The astronauts are scheduled to compete two additional spacewalks in the next 8 days.
21 February 2015, 12:30 AM ET
Two NASA astronauts will perform a spacewalk outside the International Space Station today (Feb. 21). People on Earth can watch the spacewalk live online.
20 February 2015, 07:15 PM ET
See photos from astronaut Terry Virts on a mission at the International Space Station.
20 February 2015, 01:44 PM ET
See photos from astronaut Samantha Cristoforetti's on a mission at the International Space Station.
20 February 2015, 12:50 PM ET
A space fan crafted a model of the International Space Station made from 280,000 matchsticks. Check it out here.
20 February 2015, 11:55 AM ET
NASA this week begins work to reassemble parts of the International Space Station to create parking spots for two commercial space taxis.
20 February 2015, 11:33 AM ET
Orbital ATK, builders of the Space Shuttle Solid Rocket Motors and of the future Space Launch System, describe the avionics system for their March 2015 static-fire test of the booster in Promontory, Utah.
20 February 2015, 07:00 AM ET
NASA officials have asked scientists to consider ways that a Europa mission could search for evidence of alien life in the plumes of water vapor that apparently blast into space from Europa's south polar region.
19 February 2015, 10:39 PM ET
SpaceX is a private spaceflight company that regularly delivers payloads to the International Space Station via its Dragon spacecraft.
19 February 2015, 02:35 PM ET
On Feb. 14th, 2015, the European probe flew about 4 miles (6 km) above the surface of comet 67P/Churyumov-Gerasemenko and delivered stunning imagery. It will continue to make several maneuvers to fly close to the comet over the next few weeks.
19 February 2015, 10:47 AM ET
NASA realizes its future depends upon a two-way relationship with growing commercial space companies. New facilities must accommodate the Congressionally mandated Space Launch System as well as private rockets.
19 February 2015, 07:00 AM ET
NASA's New Horizons spacecraft captured images of Nix and Hydra, two of Pluto's five known moons, from Jan. 27 through Feb. 8, at distances ranging from 125 million miles to 115 million miles (201 million to 186 million kilometers).
18 February 2015, 05:53 PM ET
A series of images taken by the NASA Horizons Mission from Jan. 27-Feb. 8, 2015 shows the two moons (25 to 95 miles in diameter) orbiting Pluto.
18 February 2015, 12:04 PM ET
A robotic submarine could explore the methane seas on Titan, Saturn's largest moon. See how space technology and NASA are working to make this a reality.
18 February 2015, 06:30 AM ET
Dawn's most recent images, taken Feb. 12 at a distance of 52,000 miles (83,000 kilometers) from Ceres, show an abundance of craters on the dwarf planet, as well as numerous bright spots that have scientists baffled.
18 February 2015, 06:30 AM ET
Bantam spacecraft should survive for about 15 minutes in Jupiter's thick air before bursting into flame, according to researchers developing a concept mission called SMARA (SMAll Reconnaissance of Atmospheres).
18 February 2015, 06:20 AM ET
See photos and images of Ceres, a dwarf planet and the largest asteroid in the solar system yet known. Ceres is round and may contain more fresh water than the entire Earth. NASA's Dawn spacecraft will explore Ceres in 2015.
17 February 2015, 04:00 PM ET
Mars would not be an easy home for human colonists. See how its lower gravity, thin atmosphere and lack of a magnetic field could make it challenging for a colonist in this Space.com infographic.
17 February 2015, 04:00 PM ET
Life on Mars would be full of chilly weather, large dust storms and geological sights dwarfing anything on Earth.
17 February 2015, 03:02 PM ET
Russia's unmanned Progress 58 spacecraft docked today to the Zvezda service module at 11:57 a.m. EST, delivering 3 tons of food, fuel, experimental hardware and other gear to the six crewmembers aboard the station.
17 February 2015, 01:45 PM ET
Students in the New York City public school system are currently competing for the chance to put a science experiment on the International Space Station, thanks to a new program at the Intrepid Sea, Air and Space Museum in New York.
17 February 2015, 07:01 AM ET
Plans to visit Europa, Jupiter's icy moon with a subsurface ocean, just became a bit more concrete. Scientists think the planet is one of the top places in the solar system that could support alien life.
16 February 2015, 02:28 PM ET
Mars One, which aims to land four pioneers on the Red Planet in 2025 as the vanguard of a permanent colony, has whittled its pool of astronaut candidates down to 100, organization representatives announced Monday.
15 February 2015, 02:37 PM ET
In the end, ESA's final space station cargo freighter went out in a fiery blaze rather than the "big bang" of its namesake. The ATV-5, christened the "Georges Lemaître" after the Belgian astronomer, plunged into the Earth's atmosphere and was destroyed.
15 February 2015, 09:23 AM ET
Europe launched a prototype minishuttle on its first space test, SpaceX lofted the DSCOVR space-weather satellite, and scientists questioned whether dark matter is truly "dark." Here are Space.com's picks for the best space stories of the week.
14 February 2015, 02:53 PM ET
On Feb. 14th, 1990, the Voyager 1 probe snapped an image of Earth. The probe was more than 4 billion miles away at the time. Druyan, Carl Sagan's co-author and widow, talks about how impactful the image is on humanity.
14 February 2015, 12:40 PM ET
From a colorful cosmic "flower" to a smiley face in space, don't miss these amazing space images of the week for Feb. 15, 2015.
14 February 2015, 11:00 AM ET
The unmanned ATV-5, named "Georges Lemaitre," departed at 8:42 a.m. EST Saturday (Feb. 14), ending its six-month stay at the orbiting lab. ATV-5 will come back to Earth Sunday afternoon (Feb. 15), in a closely monitored, fatal dive.
13 February 2015, 09:44 PM ET
The winged ship's heritage dates back to Soviet and NASA concepts from the 1980s.
13 February 2015, 08:24 PM ET
On Feb. 14, 1990, NASA's Voyager 1 spacecraft took a family portrait of the solar system, capturing Neptune, Uranus, Saturn, Jupiter, Venus and Earth — which showed up as a "pale blue dot" — in a single view.
13 February 2015, 02:18 PM ET
The European Space Agency's fifth and last Automated Transfer Vehicle, ATV-5, will undock from the orbiting outpost Saturday morning at 8:41 a.m. EST.
13 February 2015, 07:37 AM ET
Would you die on Mars? The Guardian interviewed three people that want to do just that as part of Mars One — a privately funded one-way mission to Mars planned to launch in the 2020s.