The newly discovered comet C/2023 A3 is making a close approach around the sun for the first time in 80,000 years, and might be as bright as a star in fall 2024.
A study suggests that psychedelics can access receptors inside cells that standard antidepressants usually can't affect.
Pictures from a submarine dive to the 20,000-foot-deep Kermadec Trench in the South Pacific reveal weirdos from the deep, some of which may be new to science.
The bear, unearthed in 2020, was originally assumed to be an extinct cave bear that dated back at least 22,000 years. But a new necropsy reveals it is actually a brown bear that lived 3,500 years ago.