Science

Federal investigators say the driver who was killed when his Tesla sedan crashed while in self-driving mode was speeding just before hitting the side of a tractor-trailer.
'Clone sisters' of Dolly the sheep are alive and kicking
Dolly, the first cloned mammal, had early arthritis and died young, raising concerns that clones age prematurely. But a study confirms the sheep's four sister clones are healthy and aging well.
The big internet brands of the '90s -- where are they now?
Verizon's purchase of Yahoo will close the book on one of the oldest Internet companies. What happened to the other famous '90s brands, like GeoCities, Netscape and CompuServe? A nerdy remembrance.
You can watch a rare, stinky 'corpse flower' bloom on live video
This way, you don't have to smell its famous, disgusting odor, which has been compared to rotting meat. The strange "horticultural jewel" is at the New York Botanical Garden.
The reason your feed became an echo chamber -- and what to do about it
It often feels as if social media serves less as a bridge than an echo chamber, with algorithms that feed us information we already know and like. So, how do you break that loop? We ask some experts.
Verizon buys Yahoo for $4.83B, marking end of an era
The sale marks the second time in two years that Verizon has snapped up the remains of a fallen internet star as it broadens its digital reach.
An archaeological mystery in Ghana: Why didn't past droughts spell famine?
A terrible drought hit Ghana in the 1400s, far worse than today's conditions. Yet people had enough to eat, while today they go hungry. What changed? In a word, colonialism, a new study suggests.
What does it take to get permanently banned from Twitter?
Twitter says it's reviewing its hateful-conduct policy. The suspension of conservative writer Milo Yiannopoulos has prompted a new focus on the company's ongoing struggle to rein in abusive messages.
What is a paradigm shift, anyway?
Thomas Kuhn, the well-known physicist, philosopher and historian of science, was born 94 years ago today. Psychologist Tania Lombrozo takes a look at what his "paradigm shift" really means.