Floating around at the edge of the Solar System are leftovers from its formation. This is the Kuiper Belt, which is composed ...

A visible line of planets has for weeks been the talk of astronomers and hobbyist stargazers who have sought to catch a sight of our solar system's worlds. Online chatter and a frenzy of media ...

In the eyes of the general public, it typically means that we can see multiple planets at once. Interestingly, they'll always appear along the same arc in the night sky. That path is called the ...

Seven planets are aligning in the night sky this week, creating a brief chance to see a "planetary parade." Worldwide, the best day to see the alignment is today, Feb. 28. Mercury, Venus ...