Tons of nuclear waste in the ruined basement of Chernobyl's Unit Four reactor are beginning to react again, and it could explode within years, scientists say.
China conducted two launches of classified Yaogan satellites in the last week while much of the world waited to see where and when the Long March 5B would fall.
Scientists surveying the Detroit River caught a monstrous sturgeon weighing 240 pounds (109 kilograms) and measuring 6 feet 10 inches (2.1 meters) in length.