– a virtual travel experience

Posts tagged “Earth's skys

Supernova RCW 86: Oldest recorded star explosion

A supernova is the explosion of a star; the largest explosion that takes place in space. In 185 A.D., Chinese astronomers saw a strange ‘guest star’ that suddenly appeared in the night sky. It was visible for a staggering eight months. That was enough time for ancient sky-watchers to take notice and make the first-known [ Read More … ]