Heat waves are reaching the bottoms of Earth's oceans, and that could be a big problem for the creatures that live there.
This rare video, showing two megamouth sharks swimming off the coast of San Diego, is scientists' 'only knowledge' of the sharks' social lives.
The connections between different regions of the brain responsible for language processing depend on which language you grew up with.
Scientists watched as two stars slowed in their orbits around black holes, concluding it was the result of "drag" generated by dark matter.