Cracks along a giant Martian volcano, possibly above a magma chamber, might be spewing magmatic gases into the atmosphere, ...

Scientists grew Earth microbes for more than five months under harsh conditions resembling those potentially found just beneath Mars’ surface. The microbes actively grew despite extremely low pressure ...

A new experiment reveals that Earth's microbes can grow in harsh conditions similar to what may exist just below the surface ...

Science fiction shows make it easy to jump into new worlds fast, whether you want space battles, time travel puzzles, or near future tech that hits a little ...

Mars once had active volcanoes, like Olympus Mons, which is three times higher than Everest, and so massive that when it ...

From classics like Robert A. Heinlein's Red Planet to modern masterpieces like Andy Weir's The Martian, these are the best ...

The Pentagon released its seventh batch of newly declassified UFO files including an eyewitness account of the 1947 Roswell suspected UFO crash describing alien bodies and an egg-shaped craft. The ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The Department of Defense (DOD) released a new batch of documents ...

NASA's Perseverance rover set an otherworldly driving record this week, traveling the farthest of any vehicle ever on the surface of another planet. The space agency said its rover, which has been ...

WASHINGTON, Oct 13 (Reuters) - While no person has ever set foot on Mars, humankind has managed to conduct extensive explorations of the surface of Earth's planetary neighbor using robotic rovers. One ...

NASA's Curiosity rover captured a stunning new image of a sunrise on Mars. The photo is the most detailed image ever taken of the planet's wind-carved cliffs. Curiosity has been exploring Mars for ...

A wide variety of alien species zoomed around planet Earth in different types of UFOs — including beings that looked like Greek gods, 7-foot tall reptiles and small grays — and have killed US ...