Scientists baffled over apparent coordinated attack by killer whales on boats

Spain’s Maritime Rescue service said that killer whales repeatedly ran into the Mustique, a 20-meter (65-foot) vessel sailing under a U.K. flag, late on Wednesday, rendering its rudder inoperative and cracking its hull. Spanish rescuers needed to pump out seawater before towing her to safety.

Are black holes a danger to us?

The amount of mass a black hole can contain is likened to a star 10 times more massive than our sun squeezed into a sphere about as wide as New York City, according to NASA.