Some household tools revolutionized housework when they were first invented, and many of them are still in our homes today, ...

Mathematical quirks of our universe have led some cosmologists to wonder whether the cosmos was actually born in a black hole. Parallels in the physics of the universe and that of black holes have led ...

Like part of a cosmic Russian doll, our universe may be nested inside a black hole that is itself part of a larger universe. In turn, all the black holes found so far in our universe—from the ...

2025 was another big year for black holes, and here's our pick of the top black hole stories from the last twelve months. "The sheer amount of radiated energy from these bursts is so large that you ...

Every now and again, a stellar object is caught zooming across space like a white rabbit, extremely late for a very important date. Now, for the first time, astronomers have confirmed a supermassive ...

Why is gravity so much weaker than the other fundamental forces? A small fridge magnet is enough to create an electromagnetic force greater than the gravitational pull exerted by planet Earth. One ...

Belly button pain can come from minor, treatable issues like constipation or indigestion. UTIs and hernias are more serious causes of belly button pain. If pain is severe or has other symptoms like ...

Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...