A blood moon is coming. The entirety of the lower 48 states, the greater Americas, and some regions beyond will witness — ...

From planets and constellations, to eclipses and the Aurora Borealis, here's what to look for in the sky this spring ...

The moon makes for an excellent guide to see Mars in the night sky tonight. As the sun sets this evening (Feb. 9), the moon ...

Six planets are part of the alignment, which will last until Feb. 18. Mercury will join the alignment later in the month.

This magnificent show provides a rare chance to observe the remarkable synchronisation of heavenly bodies. This month, four planets are clearly visible to the unaided eye. There will be five for a ...