02 January 2015, 01:23 PM ET
See amazing, and sometimes hilarious, photos of fun in weightlessness in these zero gravity photos on airplanes and spacecraft.
02 January 2015, 12:37 PM ET
Cosmonaut Boris Morukov, a physician and researcher who flew on a U.S. space shuttle to the International Space Station and led a 520-day simulated mission to Mars, died on Jan. 1. He was 64.
01 January 2015, 12:30 AM ET
The six astronauts onboard the International Space Station will ring in the New Year floating 240 miles above the Earth.
01 January 2015, 12:00 AM ET
See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in December 2014.
31 December 2014, 01:50 PM ET
The vast majority of people who want to fly to suborbital space and back are medically fit to do so, according to researchers at Virgin Galactic, which is developing the commercial spaceliner SpaceShipTwo.
31 December 2014, 12:22 PM ET
'Interstellar' star Jessica Chastain isn't content to explore the universe just on the silver screen. The actress appears in a new NASA video hailing the agency's efforts in space science and exploration.
31 December 2014, 11:32 AM ET
Retired Canadian astronaut Chris Hadfield is asking to hear your resolutions for 2015 in a new video released by the famous spaceflyer on Dec. 27.
31 December 2014, 10:40 AM ET
Problems with NASA's Mars Exploration Rover Opportunity's flash memory have intensified over recent weeks, so Discovery News Space Producer Ian O'Neill spoke with NASA Project Manager John Callas about the severity of the glitches.
30 December 2014, 08:03 PM ET
NASA's Barry Wilmore and Terry Virts send their well wishes from the International Space Station.
30 December 2014, 03:59 PM ET
The voice of the late astronomer Carl Sagan plays over footage of the recent test flight of the Orion spaceship, in a new video by Space City Films.
30 December 2014, 02:48 PM ET
NASA's flight control team in Houston wished International Space Station commander Barry "Butch" Wilmore a happy 52nd birthday on Dec. 29th, 2014.
30 December 2014, 12:56 PM ET
How do you celebrate a birthday in space? A NASA astronaut on the International Space Station found out how to have a cosmic birthday party Monday (Dec. 29).
30 December 2014, 12:22 PM ET
Tiny CubeSats could soon play a big role in space exploration. For example, one of these miniature satellites — NASA's 'IceCube' craft — is set to blast off in 2016 to test technology for a future mission.
30 December 2014, 09:34 AM ET
The Dawn mission will arrive at the dwarf planet in March 2015. The probe uses an ion engine to propel it throughout the solar system. Find out how they work.
30 December 2014, 07:00 AM ET
Dawn has officially entered the Ceres approach phase, after recently emerging from behind the sun relative to Earth and thus coming back into reliable communication range. The probe will enter orbit around Ceres on March 6.
29 December 2014, 06:46 PM ET
The 'Interstellar' actress talks about the early stages of the space agency's exploration agenda.
29 December 2014, 03:56 PM ET
The first-ever hand tool to be emailed up to the International Space Station can now be downloaded to anywhere on Earth.
29 December 2014, 12:00 PM ET
What can space fans look forward to next year? Closely watched spacecraft are expected to start pumping out science, while private spaceflight companies have a number of launches on the books for 2015.
29 December 2014, 10:01 AM ET
The space agency continued their exploration mission with many scientific discoveries on Earth and beyond in 2014. They also announced plans and conducted tests for future missions.
28 December 2014, 01:33 PM ET
In a two-in-one mission, the Indian Space Research Organisation (ISRO) successfully conducted the first experimental flight of its next-generation launch vehicle and demonstrated the re-entry and recovery of a prototype crew capsule.
28 December 2014, 01:23 PM ET
The Russian space agency, Roscosmos, successfully demonstrated the heavy-lift version of its long-awaited Angara series of rockets Dec. 23 from the Plesetsk Cosmosrome in northern Russia, the agency said.
25 December 2014, 07:00 AM ET
While many of us here on Earth are opening presents and feasting on Christmas Day (Dec. 25), astronauts aboard the International Space Station will be having their own celebration high above the planet's surface.
24 December 2014, 12:39 PM ET
Astronauts in space have decked the halls of the International Space Station in honor of the holiday season.
24 December 2014, 11:42 AM ET
The fatal crash of a SpaceShipTwo space plane earlier this year sent shockwaves through the world of private space travel, but suborbital spaceship's builder Virgin Galactic is making strides to learn from the tragic accident and move forward.
24 December 2014, 08:00 AM ET
They won't be home for Summer vacation: See how astronauts celebrate holidays in space.
24 December 2014, 07:00 AM ET
Nowadays, astronauts on the International Space Station can record video messages, talk with their family on the ground and have holiday parties in orbit. But the first Christmas humans spent in space, back in 1968, was a little different.
23 December 2014, 04:22 PM ET
The wrench, along with the 19 other objects built by the orbiting 3D printer thus far, will travel to Earth early next year, where engineers will compare the objects with ground samples produced by the same machine before it launched.
23 December 2014, 01:40 PM ET
Technicians successfully attached a key structure called a "carry-through spar" to the body of XCOR Aerospace's Lynx rocket plane just before Thanksgiving, at a hangar at the Mojave Air and Space Port in California, company officials announced.
23 December 2014, 06:40 AM ET
The private spaceflight company Boeing is on its way toward launching astronauts to space for NASA by 2017.
23 December 2014, 06:30 AM ET
A new type of 'Thunderwear' underwear aims to protect workers (such as welders) from sparks generated as they do their jobs. The heat-resistant material was developed as part of a space technology transfer program at the European Space Agency.
22 December 2014, 04:14 PM ET
NASA astronauts Frank Borman, Jim Lovell and William Anders take turns reading from the Bible's book of Genesis during the first manned mission to the moon. The entered lunar orbit on Dec. 24th, 1968.
22 December 2014, 03:20 PM ET
NASA astronauts Barry "Butch" Wilmore and Terry Virts of the International Space Station’s Expedition 42 crew send Christmas and holiday wishes to the people of Earth in this video message.