Another display of the northern lights could be visible this weekend in several U.S. states following a severe solar storm.

Sky gazers in several U.S. states could get a colorful glimpse of the northern lights as we enter the weekend, thanks to a ...

Planetary alignments aren't rare, but they can be when they involve six of the eight planets in our solar system.

In January and February, a spectacular planetary parade will be visible in the night sky. The celestial alignment of Venus, ...