31 August 2015, 06:01 PM ET
Six scientists will live together, but totally isolated from the rest of the world, in a mock Mars colony for 365 days to learn about the psychological toll of a mission to Mars.
28 August 2015, 09:33 PM ET
From stunning rainbow jets to Saturn's Moon Dione, don't miss these amazing space images.
25 August 2015, 06:30 AM ET
Commercial space stations could become a reality within the next 10 years if entrepreneurs and NASA can properly manage the tricky transition from the government-run International Space Station to privately built and operated facilities.
25 August 2015, 06:00 AM ET
The biggest challenges facing the private Mars One colonization project are financial rather than technical, so a big donation from a deep-pocketed person concerned about his or her legacy could make a huge difference, group representatives said.
24 August 2015, 07:46 AM ET
A robotic Japanese cargo ship made a special delivery to the International Space Station on Sunday (Aug. 24), ending a four-day trek to ferry tons of food, supplies — and even a mouse habitat and (experimental) liquor — to the orbiting lab.
24 August 2015, 07:40 AM ET
A potential advancement in the United States’ electric propulsion capability for the future of spaceflight is being underscored by a new NASA contract to support work on the VASIMR project - short for the Variable Specific Impulse Magnetoplasma Rocket.
21 August 2015, 12:00 PM ET
Japan-based Otsuka Pharmaceutical Co. aims to launch a special "time capsule" can of its Pocari Sweat sports drink to the moon next year. The can will be delivered to the lunar surface aboard Astrobotic Technology's Griffin lander.
20 August 2015, 12:21 PM ET
As Scott Kelly sails on through his year-long mission, the veteran NASA astronaut has beamed down several videos from his perch on the International Space Station.
20 August 2015, 07:57 AM ET
NASA ordered two more cargo deliveries to the International Space Station from Orbital ATK under a 2008 Commercial Resupply Services (CRS) contract, a company spokeswoman said Aug. 12.
20 August 2015, 07:25 AM ET
The Missile Defense Agency hopes to draft a preliminary design for a new kill vehicle by the end of the year.
19 August 2015, 05:34 PM ET
Journalist Stephen Petranek thinks living on Mars is far more than science fiction — he believes it will happen within the next 20 years.
19 August 2015, 04:33 PM ET
The awesome new trailer for "The Martian" is full of thrilling and stressful moments, and raises important questions about the value of human life in space exploration.
18 August 2015, 07:01 AM ET
The upcoming addition of a private inflatable "room" to the International Space Station could help pave the way for colonies on the moon and Mars.
17 August 2015, 03:30 PM ET
After nearly 20 years gazing at the sun, the SOHO spacecraft is about to spy its 3,000th comet.
16 August 2015, 09:00 AM ET
NASA astronauts eat space-grown lettuce for the first time, and burying people on the moon gets easier — here are Space.com's best space stories of the week.
15 August 2015, 07:00 AM ET
From the magnificent Milky Way to a tribute to Leonard Nimoy, don't miss these stunning space images.
13 August 2015, 07:48 PM ET
13 August 2015, 01:00 PM ET
The Björn Borg fashion brand's upcoming Spring/Summer 2016 (SS16) show is a tribute to Mars One, a privately funded project that aims to land four people on the Red Planet in 2027 as the vanguard of a permanent colony.
13 August 2015, 07:00 AM ET
San Francisco-based company Elysium Space announced Wednesday (Aug. 12) that it has signed a contract with Astrobotic Technology to deliver people's ashes to the surface of the moon aboard Astrobotic's Griffin lander.
13 August 2015, 07:00 AM ET
The countdown is on to the launch of a new eight-story-tall attraction dedicated to telling the history of NASA's space shuttle and the jumbo jet that was used to ferry the fleet of winged spacecraft across the country.
12 August 2015, 03:56 PM ET
For many skywatchers across the United States, clear skies and a dark moon will create optimal viewing conditions for tonight's Perseid meteor shower. Clouds will obscure viewing conditions in some areas, however.
11 August 2015, 03:46 PM ET
More than 6,000 'Star Trek' fans are now part of a giant online tribute to Leonard Nimoy, who played the Vulcan alien Spock on the famed series.
11 August 2015, 07:00 AM ET
Planetary Resources deployed its first spacecraft from the International Space Station last month. The Washington-based asteroid-mining company hopes to begin transforming asteroid water into rocket fuel within the next decade.
10 August 2015, 05:15 PM ET
The resulting radar images, which researchers combined into an asteroid flyby video, show that the asteroid, known as 1999 JD6, is a "contact binary" consisting of two lobes joined together.
10 August 2015, 06:50 AM ET
New "Marstronauts" will head to a Hawaiian simulation facility for a year, starting Aug. 28. Officials with the Hawaii Space Exploration Analog and Simulation (HI-SEAS) mission announced the selection of the six scientists on July 29.
07 August 2015, 05:15 PM ET
NASA's NEOWISE mission has tracked down an elusive family of asteroids that shun regular orbits in the asteroid belt, instead preferring a crazy roller coaster ride through the solar system's equatorial plane.
07 August 2015, 06:01 AM ET
Former NASA astronaut Pamela Melroy recently shared her experiences and insights about spaceflight and exploration.
06 August 2015, 10:45 AM ET
The U.S. Senate approved a bill Aug. 4 that extends two key provisions of commercial launch law and authorizes operations of the ISS beyond 2020.
05 August 2015, 04:15 PM ET
See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in July 2015.
05 August 2015, 01:01 PM ET
For the first time, astronomers have spotted a protogalactic disk — a giant whirling cloud of gas that gives birth to a galaxy — and the discovery could reveal clues about how galaxies form.
05 August 2015, 09:53 AM ET
Escape Dynamics of Colorado is developing remotely powered thrust systems for trans-atmospheric spacecraft. Offloading the mass of fuel and large engines could empower “single-stage-to-orbit" reusable vehicles.
04 August 2015, 03:59 PM ET
Six people spent two-thirds of a year in the HI-SEAS (Hawaii Space Exploration Analog and Simulation) analog pretending to be Martian astronauts. Here's a look inside the science, work and fun they had during their time on "Mars."
03 August 2015, 05:30 PM ET
Broomfield, Colorado-based Escape Dynamics announced July 17 it carried out a small-scale test in the laboratory of its beamed microwave thruster. In that test, the company beamed microwave energy to a thruster, heating helium propellant and generating a
31 July 2015, 06:55 PM ET
From an amazing view of Africa from space to a tint galaxy bursting with stars, don't miss these stunning space images.
31 July 2015, 08:45 AM ET
XCOR Aerospace, a company developing a two-seat suborbital spaceplane for tourism and research applications, plans to raise its ticket prices by 50 percent next year, the company announced July 16.
29 July 2015, 08:30 AM ET
The photo shows SpaceShipTwo pilot Peter Siebold floating back to Earth via parachute on Oct. 31, just moments after the vehicle broke apart in a test-flight disaster that killed co-pilot Michael Alsbury.