Some educators believe social media can help them engage with students, but it also raises questions around classroom privacy.
Telling people to quit the platform is less effective than stopping influential elites from using the site in harmful ways.
Daniel Holz studies the universe’s ultimate catastrophes. And he knows a thing or two about existential threats on Earth, since he helps set the Doomsday Clock.
Researchers are working on an injectable that could get dormant follicles growing again. Trials on mice show promise.