The aurora borealis is one of the most beautiful natural spectacles on the planet, so it's worth a trip this time of year to ...
Comets are often described as "dirty snowballs." They are made up of ice, dust, and rocky materials. When a comet approaches the sun, the heat causes its ice to vaporise, creating a glowing coma (a ...
The James Webb Space Telescope has captured an image of a collision between a spiral galaxy and an elliptical galaxy.