Not much is known about dark matter, but scientists have long-thought that it was the remnant of the birth of the universe

Not much is known about dark matter, but scientists have long-thought that it was the remnant of the birth of the universe
13 days after an X-ray emission was detected from a distant galaxy, an almost identical radio signal was detected
By adding these new constraints, astronomers should be able to differentiate between a large planet and a brown dwarf
Scientists have discovered a hungry black hole swallowing a star at the centre of a nearby galaxy
The Mars rover will take advantage of a chance to study some modern Martian activity at mobile sand dunes