You can tell spring has officially begun in the Northern Hemisphere just by looking at the stars. Here's how to easily spot the Spring Triangle without a telescope.

A star called T Corona Borealis may "go nova" next week, making the star briefly visible to the naked eye. It last happened in 1787, 1866 and 1946.

Constellations are groups of stars that form patterns ... shift with the seasons, and a map for the Southern Hemisphere won’t help much if you’re in the Northern Hemisphere.