Measuring rocket pollution, how calcium induced an ice age, unpacking dark matter and a listener question about freezing flows ...

On an extended research visit to a friend’s lab in Tokyo, marine biologists Amy Johnson and Olaf Ellers witnessed something they’d never seen before. The starfish in Tatsuo Motokawa’s lab weren’t ...

If you’re able, watch this video. If not, allow me to explain. Two crown-of-thorns starfish are placed in separate tanks. Ordinary seawater is poured into one. In the other, seawater that a giant ...