Gaze up into the sky and you'll see something rare. And, no, it won't be Santa. He and his reindeers will have already zoomed across the horizon.
True to its purpose, the big NASA spacecraft that began orbiting Mars a decade ago this week has delivered huge advances in knowledge about the Red Planet.
We all intuitively understand the basics of time. Every day we count its passage and use it to schedule our lives.
Sand dunes cover much of this terrain, which has large boulders lying on flat areas between the dunes.
Orbital ATK has unveiled a practical new proposal to build a near term man-tended outpost in lunar orbit that could launch by 2020 and be operational in time for a lunar link-up with NASA's Orion crew module during its maiden ...
Our nearest stellar neighbor, Proxima Centauri, a mere 4.3 light-years away, is not alone.
SpaceX CEO Elon Musk says if things go according to plan people will be on Mars just nine years from now.
Satellites used to be the exclusive playthings of rich governments and wealthy corporations. But increasingly, as space becomes more democratized, these sophisticated technologies are coming within reach of ordinary people. ...
Planet Earth could be at higher risk of a space rock impact than widely thought, according to astronomers who suggested Tuesday keeping a closer eye on distant giant comets.
Orbital ATK conducted a full-power test of the upgraded first stage propulsion system of its Antares medium-class rocket using new RD-181 main engines. The 30-second test took place at 5:30 p.m. (EDT) on May 31, 2016 at Virginia ...