This black hole merger animation was created using data collected by the LIGO and Virgo gravitational wave detectors, an observation designated GW190412. Credits: © N. Fischer, H. Pfeiffer, A.

In what may be the world's first-ever recorded sighting, a black seadevil — anglerfish known for living thousands of feet ...

This is only the second time the species has been recorded while alive. “I thought it was A.I.,” says fish biologist Kory Evans.