Expansion of the universe had already been anticipated by theorists. In the early 1920s, Alexander Friedmann and Georges ...

The James Webb Space Telescope and its legacy partner Hubble will hunt for a rocky exoplanet with air around a red dwarf star ...

The James Webb Space Telescope captured an image of a collision between a spiral galaxy and an elliptical galaxy. Together, ...

This fin-tastic footage shows divers - risking their fingers to hand-feed these huge hammerhead and tiger sharks. The ...