Albert Einstein’s theory of general relativity suggests backward time travel is possible in some scenarios, but do those situations ever exist in our universe?
Forty years ago, NASA launched Voyager I and II to explore the outer solar system. The twin spacecraft both visited Jupiter and Saturn; from there Voyager I explored the hazy moon Titan, while Voyager II became the first (and, to date, only) probe to expl
The fossilized remains of two pterosaurs — winged reptiles that flew sky high during the dinosaur age — suggest that the beasts were closely related to the gigantic Quetzalcoatlus northropi, the largest pterosaur on record, new research finds.
Scientists from NASA and the European Space Agency have been monitoring asteroid 2012 TC4, and have recently updated its flyby distance.
A mysterious chemical cloud descended on beaches in England on Sunday (Aug. 27), according to news reports, and authorities are still puzzling over what caused it and why it sickened more than 100 people.
The Pleistocene Epoch began about 2.6 million years ago and lasted until about 11,700 years ago.
The Tesla and SpaceX CEO believes the only way to keep pace with artificial intelligence is to upgrade human intelligence.
NASA is studying a “lean” architecture for Mars sample return that could allow the agency to bring back Martian rocks as soon as the end of the 2020s.
Astronomers have set a new distance record, detecting the magnetic field of a galaxy located 5 billion light-years from Earth.
The bizarre vortex spinning at Saturn’s north pole takes center stage in a newly released photo by NASA’s Cassini spacecraft.