31 January 2014, 01:28 PM ET
U.S. President Barack Obama recalled the heroism of Americans who lost their lives in the pursuit of space exploration to mark NASA's somber memorial today (Jan. 31) for three spaceflight disaster anniversaries this week.
31 January 2014, 11:30 AM ET
Billionaire rocket-maker Elon Musk of SpaceX shared his big vision for a "self-sustaining civilization" on Mars with actor Joseph Gordon-Levitt in a short documentary set to air this weekend.
31 January 2014, 11:14 AM ET
See images of Xcor's proposed spacecraft, Lynx.
31 January 2014, 06:20 AM ET
A NASA astronaut currently in orbit on the International Space Station will speak with Space.com today (Jan. 31), and you can watch the conversation live online.
30 January 2014, 05:30 PM ET
To honor a somber week in NASA history, the space agency will pay homage to its fallen astronauts Friday (Jan. 31) during a "Day of Remembrance."
30 January 2014, 09:05 AM ET
The five-member crew of the Space Shuttle Atlantis during STS-74 peer at Mir.
29 January 2014, 04:00 PM ET
Do you want to fly on a suborbital space plane? What about a mission into orbit? A new commercial spaceflight training company wants to help you develop the right stuff for flying to space.
29 January 2014, 11:24 AM ET
Sound suppression testing of NASA's Space Launch System (SLS) is underway at the Marshall Space Flight Center in Alabama. A 5% scale model of the rocket was fired in an acoustic test chamber with >250 ports for microphones and transducers.
29 January 2014, 10:10 AM ET
NASA astronaut Tracy Caldwell Dyson shared her experiences on the International Space Station with elementary school students in her home state on Jan. 23.
29 January 2014, 01:45 AM ET
Wally Schirra, one of the original Mercury Seven astronauts, was the only one who flew in the Mercury, Gemini and Apollo programs.
28 January 2014, 03:09 PM ET
CJ Sturckow, who has four space shuttle missions under his belt, got behind the wheel of Virgin Galactic's private SpaceShipTwo for the first time earlier this month, guiding the vehicle through an unpowered "glide flight."
28 January 2014, 03:01 PM ET
NASA astronaut Rick Mastracchio has been living and working on the International Space Station since November. On Friday (Jan. 31), the veteran astronaut will speak with SPACE.com about his life in space.
28 January 2014, 01:46 AM ET
Gus Grissom, one of the original Mercury Seven, also flew on a Gemini mission. He died during training for the first Apollo mission.
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.