NASA and NOAA recently announced good news concerning the ozone hole. What are lessons about science, policy and skepticism ...

Comments online that imply that the hole in the ozone layer was overblown are missing context. While it is correct that this crisis is not talked about as much as it used to be, this was not because ...

Several types of black holes exist, including stellar, supermassive, primordial, and intermediate-mass. Supermassive black holes reside at the centers of most galaxies. Falling into a black hole would ...

Black holes are extremely camera shy. Supermassive black holes, ensconced in the centers of galaxies, make themselves visible by spewing bright jets of charged particles or by flinging away or ripping ...

People can use ketamine recreationally for its floaty effect. It can produce dissociative and hallucinogenic effects, which are collectively called a K-hole or K-holing. Ketamine hydrochloride, also ...