Our galaxy may have pickpocketed stars — and a healthy scoop of dark matter — from an unsuspecting nearby dwarf galaxy.
Last year, China equaled the number of orbital launches by the U.S. and, for the first time, overshadowed Russia.
More study is needed to determine where the organics came from and how they managed to survive in the Red Planet's harsh environment.
The methane-detecting instrument aboard the ISRO MOM spacecraft has been re-purposed after NASA scientists uncovered a design flaw.
The new weapon is designed to find, track and destroy multiple enemy warheads — even if they are accompanied by decoys.
When Americans venture out to Mars and other destinations beyond Earth orbit, one thing they won't have to leave behind is Thanksgiving dinner.
With Thursday's (Nov. 17) launch of three new crewmembers, the International Space Station will be returned to full staffing — but not for long.
The prospect of a private company flying to Mars opens options for returning key science samples back to Earth for NASA, the agency's new science chief said on Monday.
The unfortunate transition of Schiaparelli lander into "Schiaparelli Crater" may have a silver lining.
The SETI community is rethinking how reports of extraterrestrial life should be shared with the public.
The Kennedy Space Center director vows to rebuild the retreat that astronauts used to say good-bye to their spouses, partners and close friends before leaving Earth.
Elon Musk's space company aiming for first flight to the Red Planet in 2018 and the US space agency says the time is right.
Revamped after a steering system failure, NASA's orbiting telescope still is contributing to the growing inventory of planets beyond our solar system.
Microsoft co-founder Paul Allen has an alternative idea about how to pave a commercial highway to space.
With fuel to spare, NASA is mulling a proposal to send the Dawn spacecraft to another asteroid after its mission at the dwarf planet Ceres.
Perlan 2 pilots will search for high-altitude updrafts of air, known as mountain waves, that form over the Andes.
An orbital experiment is about to test to see if objects really fall at same speed in a gravitational field — or wither some exotic physics may be detected.