Mimas and its giant parent Saturn were captured by NASA's Cassini probe, which has been exploring the solar system for 15 years
Orion, which is designed to take humans to the moon, asteroids and Mars, could carry up to four astronauts
Researchers can now calculate and use the fireball trajectory to trace the meteorite back to its origins in the Asteroid Belt
The newest measurements, courtesy of NASA's Spitzer Space Telescope, come from infrared observations of distant variable stars
The "time tunnel into the distant past" gives us a glimpse of galaxies as they looked up to 13.2 billion years ago
Scientists have envisioned a space-time crystal with cyclical structure in time as well as space
Sunita Williams ran, biked and "swam" with California triathletes to combat the muscle degeneration that comes with weightlessness
The finding could be put to use at a new facility opening in 2020 that might create new elements—that is, nuclei with more than 118 protons—in addition to new isotopes of the known elements...
The same lab that first reported the shocking results last year, which could have upended modern physics, now reports that neutrinos "respect the cosmic speed limit"
The company's Falcon 9 liftoff this morning represents the potential of a new era in U.S. spaceflight, the White House science adviser says
Science fiction writers will always, by definition, be one step ahead of engineers, and interstellar travel and time travel still elude them
It's just the second new particle to be discovered at the atom smasher where physicists also seek the elusive Higgs boson particle
The "Star Trek" actor was on hand when the shuttle Enterprise flew in atop a jumbo jet Friday and explained the show's influence on the shuttle's name
A match of silicon isotopes in terrestrial and lunar rock samples is revealing more about how both bodies really formed
Scientists hope that by plotting out the distribution of dark matter throughout space, they will come closer to understanding what it is
Phobos-Grunt appears to be stuck in Earth orbit. In two weeks, if its thrusters aren't restarted, the spacecraft will be lost completely
The defunct Upper Atmospheric Research Satellite (UARS) reentered the atmosphere at 12:01 A.M. Eastern time (0401 GMT) on Saturday, falling into the Pacific at 14.1 degrees south latitude and 189.8 degrees east longitude...
Atlantis is on its way home for a final landing at NASA's Kennedy Space Center in Florida
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One of the architects of the idea that “firewalls” of high-energy particles border black holes will answer readers’ questions in a video chat