Researchers have pushed back the timeline of migration into Mallorca based on the age of a submerged rock bridge found in a cave on the island. The 25-foot-long (7.62-meter-long) bridge is about 6,000 years old, the team posited in a ...

Astronomers have precisely measured the feeding schedule of a supermassive black hole nearly one billion light-years from Earth, giving the team an estimate for when its next meal might be. The black hole is about 50 million times more massive ...