Extraterrestrial life may not consist of grey creatures with large black eyes, but NASA thinks there may be different types of living organisms on Europa.
Have you ever wondered what life would be like on Saturn's moon, Titan? NASA has, and the agency wants to send a space sub there.
We are all familiar with the front side of the moon, but a new video shows the side that we never see.
ESA's Planck space observatory data suggests that the "Dark Ages" of the universe lasted 140 million years longer than previously thought.
The New Horizons space probe, launched in 2006, will make a close flyby of Pluto in July.
Contracts with SpaceX and Boeing will help the U.S. reduce its reliance on Russia to get to the International Space Station.
The star, named Kepler-444, is 11.2 billion years old, making it almost as old as the Milky Way.
NASA's probe Dawn has dwarf planet Ceres in it sight.
U.S. crew members were told to evacuate their section of the International Space Station following an ammonia leak.
Cruz hasn’t exactly been the space agency's biggest advocate.
Scientists had been observing the pulsar, part of a binary star system about 25,000 light-years from Earth, for five years.
Using data obtained from NASA's Kepler space observatory, scientists found that the rate at which a star spins slows down with age.
The vehicle has been on the surface of Mars since January 2004, and is finally showing signs of wear and tear.
The sun was lit up like a Christmas tree in its very first high-energy X-ray portrait.
The shocking rate of melt was quantified by scientists from the University of California and NASA, who gathered data from 1992 to 2013.
Watch live stream footage of Orion's first trip into space Thursday, courtesy of NASA TV.
The Soyuz capsule arrived at the space station at 9:49 p.m. EST and the crew is scheduled to disembark at 11 p.m.
Russia said it wants to launch a space station in 2017, but those claims may be more about politics than science.
For the first time in history, a manmade spacecraft has landed on a comet.
The decadelong Rosetta mission is due to make history in space Wednesday, if all goes to plan.
SpaceX founder Elon Musk is reported to be in talks to launch 700 light-weight communications satellites that could provide Internet access.
"Interstellar" made its highly anticipated debut in U.S. movie theaters this weekend.