The physicist, whose pioneering work on black holes in the 1970s made him a household name, has proposed a radical fudge to try and resolve a baffling paradox.
Canine transmissible venereal tumours (CTVT) is one of only two natural transmissible cancers, and could hold the key to better organ transplants in humans.
An international group of researchers has found that the largest glacier in West Antarctica is "retreating inland" faster than ever.
Japanese scientists have made hundreds of tiny plastic balls float around like miniature spaceships.
Another day, another study misrepresented as causing our brains to change in some mysterious, irreversible way.
How would we know if time travellers have visited our time period? By looking for tweets, of course.
One of the site's largest subreddits, r/science, has had enough of angry, conspiracy-spouting posters who do nothing but ruin legitimate debate.
The FDA doesn't want 23andMe to offer health advice with its DNA testing kits, but this is surely just the first test for regulators as the home genome industry emerges.
CT scans and 3D printers are making it possible to see fossils that were previously inaccessible inside rock.
"Few people enjoy a perfect sexual relationship - we need to encourage those people to access the services and support they need."