Leaving your Wi-Fi on could be an open invitation for hackers. Discover simple steps to safeguard your smartphone and keep ...

A newly discovered blue hole has smashed depth records, plunging further into the Earth's crust than any known underwater ...

A supermassive black hole 100 million light-years away is behaving like nothing scientists have ever seen, emitting X-ray flashes at a pace that keeps accelerating. Could a spinning white dwarf be ...