The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

The bright binary star system V Sagittae will flare up multiple times before finally going supernova within the next 100 ...

To enjoy the Geminid show, bundle up and venture away from city lights, which can drown out fireballs. The meteor shower will ...

Auroras may be visible from Alaska to New York as an incoming coronal mass ejection is expected to slam into Earth today.

A brilliant point of light is rising in the eastern sky soon after dark this month, drawing comparisons to the "Star of ...