Our planet’s surface is littered with debris from the skies — and researchers have found that most come from only a few ...

Aurora watchers and sun gazers, take heart — our star could remain at this level of activity for another year.

Crew during the five-day mission pulled off several feats — including the first private spacewalk — that could open new ...

Quality planetarium software is essential to planning observations, especially for comets. Many software packages are ...