27 January 2014, 07:12 PM ET
If astronauts are to terraform Mars, agriculture may rely on Earth microbes improving Martian soil.
27 January 2014, 05:23 PM ET
When Challenger was lost, the U.S. space program chose to not falter.
27 January 2014, 04:12 PM ET
It was 'take two' for the installation of a pair of commercial video cameras on the outside the International Space Station, as Russian cosmonauts conducted a second spacewalk to add the Earth-viewing HD cameras to the orbiting outpost's exterior.
27 January 2014, 11:04 AM ET
An astronaut prepares to install protective covers on the Hubble Space Telescope.
27 January 2014, 10:15 AM ET
See photos of Russian cosmonauts Oleg Kotov and Sergey Ryazanskiy spacewalking outside the International Space Station on Jan. 27, 2014 to install UrtheCast HD cameras for Earth observation.
26 January 2014, 12:40 PM ET
What was your favorite space news story of the last week?
26 January 2014, 10:45 AM ET
NASA's robot butler for astronauts, Robonaut 2, is still waiting for its legs to be delivered to the space station. In the meantime, video of the robot's twin on Earth shows how its climbing legs will allow the droid to move with eerie elegance.
25 January 2014, 12:03 PM ET
From an image of a strange 'Jelly Doughnut' rock, to a new look at a cosmic lagoon, as well as striking images of a new supernova, don't miss these amazing space images of the week for Jan. 25, 2014.
24 January 2014, 12:13 PM ET
See photos of NASA's amazing RoboSimian robot, an adept robot to aid space exploration and Earth life built by engineers at the Jet Propulsion Laboratory. The robot competed in DARPA's Robotics Challenge in December 2013.
24 January 2014, 12:00 PM ET
A new private space plane expected to eventually deliver astronauts into orbit has a launch date and a rocket to launch it into space.
23 January 2014, 04:48 PM ET
Sierra Nevada's Dream Chaser spacecraft has come a long way. This video shows how the ship was put together, the pilots trained, and the ship tested over the past few years in preparation for a test launch in 2016 and human pilot flights in 2017.
23 January 2014, 11:36 AM ET
For the first time, a single crew member attempts to capture the Intelsat VI.
23 January 2014, 11:29 AM ET
In January 2014, a team of scientists ventured to the Utah desert for a two-week Mars mission simulation. See what the mock Mars mission was like for SPACE.com contributor Elizabeth Howell.
23 January 2014, 08:45 AM ET
Fresh of a mock mission to Mars, SPACE.com contributor Elizabeth Howell will host an exciting "Ask Me Anything" session on Reddit today (Jan. 23) to answer your questions on what it is like to experience a simulated trip to the Red Planet.
22 January 2014, 03:06 PM ET
A popular, historic and huge NASA tour spot is closing to the public as the space agency picks up the pace preparing for the future of U.S. space exploration. Public tours into the Vehicle Assembly Building in Florida are set to end on Feb. 11.
22 January 2014, 02:52 PM ET
It's official: the bill re-naming the NASA's Hugh L. Dryden Flight Research Center in southern California for the first man to walk on the moon is now a law.
22 January 2014, 11:02 AM ET
As SPACE.com contributor Elizabeth Howell's Mars mission in the Utah desert comes to a close, she reflects on the commitment it takes to 'live' on the Red Planet, from maneuvering in a spacesuit to simulating zero gravity surgery.
21 January 2014, 08:43 AM ET
Astronaut Michael Gerhardt stands on the Manipulator Foot Restraint during his STS-69 Extravehicular Activity.
20 January 2014, 04:15 AM ET
See photos of NASA's Valkyrie (R5) space robot, a humanoid robot built to compete in the DARPA Robotics Challenge and advance the state of the art of robotics within the agency.
18 January 2014, 04:56 PM ET
What was your favorite space news story of the last week?
18 January 2014, 12:12 PM ET
From a photo showing a spooky looking nebula to a striking new photo of a doomed star, don't miss these amazing space images of the week for Jan. 18, 2014.
18 January 2014, 11:12 AM ET
Four private companies working to eventually launch astronauts into space with NASA are gearing up for a big year in 2014.
17 January 2014, 05:07 PM ET
The spacesuits and backpacks used on "Marswalks" at the Mars Desert Research Station are not quite the real deal, but feel real enough when you put one on.
17 January 2014, 04:03 PM ET
From 1955 to 1962, Neil Armstrong was a research pilot at the NASA Research Flight Center now named in his honor. While flying there, he tested numerous cutting edge craft, including rocket powered jets and jet capable of sweeping its wings.
17 January 2014, 06:30 AM ET
The spectacular SpaceShipTwo video documents the vehicle's rocket-powered flight on Jan. 10, which set a company altitude record by getting up to 71,000 feet (21,641 meters) in the skies above California's Mojave Air and Space Port.
16 January 2014, 04:42 PM ET
As I revved the all-terrain vehicle up the steep hill, I could feel gravity and mud pushing me back from the crest. I leaned forward in my spacesuit and with my right thumb, pressed hard on the throttle.
16 January 2014, 12:49 PM ET
The Space Shuttle Atlantis lands with its drag chute deployed.
16 January 2014, 11:14 AM ET
The European Space Agency is developing a tight-fitting "skinsuit" designed to squeeze the body from the shoulders to the feet, counteracting the lack of gravity in space.
16 January 2014, 07:40 AM ET
An interstellar spacecraft could conceivably be powered by the radiation emitted by a tiny, manmade black hole. Here's a look at what it would take to turn this ambitious idea into reality.
16 January 2014, 07:38 AM ET
NASA’s Commercial Crew Program would get up to $696 million — its highest annual budget yet — under an omnibus spending bill drafted by Congress to fund the federal government for the remainder of 2014.
16 January 2014, 07:34 AM ET
During an orientation walk around the Mars Desert Research Station in Utah on Jan. 5, our crew confronted a steep hill.
15 January 2014, 03:56 PM ET
Within days of our two-week stay at the Mars Desert Research Station, crew members already encountered minor medical problems – a sore back and a cold or flu among them.