Science

Tech companies find more signs of Russian election activity
Facebook says a Russian group posted more than 80,000 times on its service during and after the election, potentially reaching as many as 126 million users.
Inside the left's online efforts to out white supremacists
An anonymous group of vigilantes works to identify racists, a legally gray tactic known as doxxing that comes with plenty of risk for all.
Alexa, are you safe for my kids?
Talking to a device that talks back can be entertaining and educational for children. But psychologists say children can develop relationships with these devices that can be different than adults.
When the state sinks, science is the anchor
As history has shown, political and ideological repression passes -- but scientific knowledge remains, says astrophysicist Marcelo Gleiser.
Mushrooms that don't brown? Pigs resistant to diseases? Though the process does not introduce foreign genetic material into food or livestock, getting consumers to buy in will be an uphill battle.
Under congressional microscope, Twitter vows new 'transparency' on ads
The microblogging service has promised a new wave of disclosure about who uses it to advertise as the Hill continues probing the Russia imbroglio.
Astronaut Paul Weitz dies at 85; veteran of Skylab and Shuttle missions
Selected by NASA in 1966, Weitz went on to fly on the first manned Skylab mission and performed vital space walks to fix the stricken station. He later commanded the maiden flight of Challenger.
CRISPR bacon: Chinese scientists create genetically modified low-fat pigs
Scientists have used CRISPR, a new gene-editing technique, to create pigs that can keep their bodies warmer, burning more fat to produce leaner meat.