How much dark matter has gone missing since the Big Bang? New research suggests anywhere from 2 to 5 percent.
NASA has released some of the most artful, majestic and sometimes just plain cool images taken by astronauts on the International Space Station in 2016.
A rocket fired from a jet plane Thursday (Dec. 15) to launch NASA's latest Earth-observing mission, an 8-satellite mission to study hurricanes like never before.
"Hidden Figures" actors and director held a press conference in New York City to discuss the film in the context of NASA history and how that history resonates today.
NASA's Cyclone Global Navigation Satellite System (CYGNSS) mission will use radio signals from the GPS satellites to track hurricanes like never before. Liftoff is set for Monday, Dec. 12.
An inflatable space habitat that could save weight and volume on future missions is showing how well it can do its job.
NASA's Dawn probe is snapping stunning new views of the dwarf planet Ceres as the spacecraft pushes ever higher above the small world.
The largest metallic asteroid in the solar system may have water on its surface, astronomers have found.
The largest telescopes on Earth were trained on Io, tracking volcanoes more active than anything on Earth.
Multiple spaceflight companies are working on plans to carry humans to space. Here's our list of the top commercial spaceships.
If life existed on Mars, it would have had to deal with harsh radiation — and any traces might only be found deep under the soil.
A cluster of stars 19,000 light-years away — in our backyard, in galactic terms — has offered clues about what our galaxy was like eons ago, when it was just forming from great clouds of gas.
If recent findings on Earth are any guide, the oldest rocks on Mars may have signs of ancient life locked up inside.
Astronomers don't yet have enough information to know whether or not the newfound world Proxima b is capable of supporting life as we know it.
Through the centuries, Venus and Jupiter have transformed in the public consciousness, thanks to science and science fiction.
Dark streaks found running down hillsides on the surface of Mars appear to hold water, but no more than the very driest locations on Earth, according to a new study.
Black holes twist space like taffy and create vortices of gravitational force, a new study suggests. The discovery solves a 30-year-old mystery about black holes.
If you're a space traveler lost in the universe, a team of astronomers here on Earth has your back: They've made the largest ever 3D map of galaxies that humanity can see.