The sword is the first weapon from the Islamic period to be found in the Spanish city of Valencia.
Submillimeter wavelength radio observations of the Southern Ring Nebula have identified that it's actually a double ring, shaped by the interactions of three stars.
Mars has had frequent planet-wide auroras in recent months, including an unprecedented trio of events in February. Experts say the sudden increase is the result of the ongoing solar maximum.
A new map of a brain network that sustains wakefulness in humans could help improve our understanding of consciousness.
A new imaging technique, which captured frozen lithium atoms transforming into quantum waves, could be used to probe some of the most poorly understood aspects of the quantum world.
Northrop Grumman Corporation has built its Manta Ray uncrewed underwater vehicle, which will operate long-duration missions and carry payloads into the ocean depths in partnership with DARPA.
Up to 50 "shooting stars" per hour may be visible in moonless skies as the Eta Aquarid meteor shower peaks Saturday and Sunday (May 4 and 5). The annual shower is linked to debris from Halley's c...
In recent experiments, rat brain cells filled in for lost neurons in mouse brains, raising new possibilities for growing donor tissues across species.
Researchers say a villa buried by the eruption in A.D. 79 corresponds with records of the Roman emperor's death in A.D. 14.
Prehistoric cold viruses are hard to find in the historical record, but scientists have unearthed some evidence in ancient human teeth.