21 May 2014, 03:49 PM ET
Should recent geopolitical events ultimately prompt the U.S. government to build a domestic alternative to the Russian-built RD-180 engine that powers one of its workhorse rockets, it probably makes more sense to develop one from scratch.
21 May 2014, 02:37 PM ET
The Satellite Sentinel Project — which has been using spacecraft imagery to monitor human rights abuses in Sudan and South Sudan since December 2010 — will also now conduct investigations, following the money trails that fund mass atrocities.
21 May 2014, 01:09 PM ET
An astronaut examines the protective material on his Mercury capsule.
21 May 2014, 11:44 AM ET
The Special Purpose Dexterous Manipulator (SPDM) aka Dextre, will replace a faulty camera near the elbow of its attached robotic arm. This will be the first self-repair conducted by the the robot.
21 May 2014, 08:33 AM ET
Space.com shadowed a group of students from the University of California, San Diego who were selected by NASA to test an experiment on board a zero-gravity flight.
21 May 2014, 07:01 AM ET
NASA's InSight Mars lander, which is scheduled to launch toward the Red Planet in 2016, passed a key design review Friday (May 16), clearing the way for construction of the spacecraft to begin.
20 May 2014, 04:01 PM ET
Big Joe, a test rocket, had a successful yet failed test flight.
20 May 2014, 03:54 PM ET
Boeing and Samsung are teaming up to find new ways to incorporate mobile technology and applications into the CST-100 spacecraft, which Boeing is developing as part of NASA's commercial crew program.
20 May 2014, 11:35 AM ET
The retired shuttle's new home, the California Science Center, has plans to display the orbiter in launch configuration, equipped with solid rocket boosters and external tank.
20 May 2014, 06:00 AM ET
The space agency's Low-Density Supersonic Decelerator test vehicle is now fully assembled at the U.S. Navy's Pacific Missile Range Facility in Hawaii — the site of its first flight trial, which is currently scheduled for June 3.
19 May 2014, 04:18 PM ET
See photos and images of NASA's ISEE-3 spacecraft, a probe launched in 1978 that is returning for an Earth flyby in August 2014, in this Space.com gallery.
19 May 2014, 02:49 PM ET
NASA has shortlisted three potential commercial partners for non-funded agreements as part of the agency's quest to land robotic spacecraft on the moon.
19 May 2014, 11:30 AM ET
Billionaire Elon Musk says his private spaceflight company SpaceX has made some progress toward a permanent colony on Mars — a long-time goal in the entrepreneur's push to help make humanity a multi-planet species.
19 May 2014, 11:04 AM ET
While it was never an official NASA program, FLATs helped pave the way for the first female Shuttle pilot.
19 May 2014, 10:38 AM ET
Wubbo Ockels, who in 1985 became the first Dutch citizen to fly into space, died Sunday (May 18), the European Space Agency (ESA) confirmed. He was 68.
18 May 2014, 03:08 PM ET
SpaceX's robotic Dragon capsule splashed down in the Pacific Ocean today (May 18), bringing more than 1,000 lbs. of science cargo back to Earth from the International Space Station.
18 May 2014, 09:40 AM ET
SpaceX's unmanned Dragon capsule departed the International Space Station today, putting it on a path back to Earth after about one month attached to the orbiting outpost.
18 May 2014, 08:20 AM ET
See photos from SpaceX's third Dragon space capsule mission to deliver supplies to the International Space Station for NASA. The mission launches April 18, 2014 from Cape Canaveral, Fla.
17 May 2014, 11:30 AM ET
A replacement Global Positioning System spacecraft for the world's best-known satellite constellation ascended into orbit Friday night aboard a Delta 4 rocket in a spectacular sendoff at sunset.
16 May 2014, 08:46 PM ET
What was your favorite space news story of the last week?
16 May 2014, 08:02 PM ET
From two neutron stars merging to Jupiter's shrinking spot, don't miss these amazing space images of the week for May 17, 2014.
16 May 2014, 07:24 PM ET
From the moon occulting Saturn to the earthgrazer meteor, don't miss these spectacular objects to watch in the night sky.
16 May 2014, 05:44 PM ET
SpaceX's robotic Dragon cargo capsule is scheduled to leave the International Space Station and splash down intact in the ocean on Sunday (May 18), and you can watch it live online.
16 May 2014, 05:07 PM ET
The ambitious private project, the first of its type, is attempting to reuse the International Sun-Earth Explorer 3 probe (ISEE-3), which launched in 1978 and ceased science operations in 1997.
16 May 2014, 04:29 PM ET
The Venus Express probe is running low on fuel. So mission officials wrapped up routine science operations this week to begin preparing the spacecraft for a deep dive into the planet's fast-swirling air.
16 May 2014, 01:21 PM ET
The space agency has approved a new mission called K2 for Kepler. The telescope's original exoplanet hunt came to an end in May 2013 when the second of the spacecraft's four reaction wheels failed, robbing it of its precision pointing ability.
16 May 2014, 12:36 PM ET
The ESA Venus Express will dive to an orbit of 80 miles above Venus with the atmosphere-skimming maneuver. Mission controllers hope to maintain the orbit from June 18th - July 11th, 2014.
16 May 2014, 11:51 AM ET
In preparation for his Mercury Redstone-2 flight, Ham checks out his life support system and couch.
16 May 2014, 10:28 AM ET
An advanced Russian communications satellite was destroyed Thursday (May 15) when its Proton rocket booster failed minutes after liftoff from the Baikonur Cosmodrome in Kazakhstan.
16 May 2014, 09:54 AM ET
Microorganisms from Earth could hitch a ride on spacecraft and end up colonizing the Red Planet and other celestial bodies in the solar system, recent research suggests.
16 May 2014, 09:23 AM ET
Communications were lost with the Proton-M rocket carrying an advanced communications satellite 540 seconds after liftoff from the Baikonur Cosmodrome in Kazakhstan on May 16th, 2014. July 2013 Proton Explosion: http://goo.gl/9yMJ2S
16 May 2014, 07:21 AM ET
The bold asteroid-redirect plan may also feature the first in-space test of the "enhanced gravity tractor" technique, which could help steer dangerous space rocks away from Earth.