Did you miss the last planetary parade in June? The next planetary alignment is this weekend. Here's when to watch it ...

Add Yahoo as a preferred source to see more of our stories on Google. Former NASA astronaut Scott Kelly snapped this photo of the Earth's crescent, the Moon, Venus, and Jupiter (from top to bottom) in ...

A rare celestial occasion will light up the Saturday evening skyline, featuring a bright six-planet parade in a special planetary alignment visible to stargazers. Mercury, Venus, Neptune, Saturn, ...

This weekend provides a rare treat for stargazers. Well, planets, to be more specific. Mercury, Venus, Neptune, Saturn, Uranus and Jupiter will will appear to line up on the horizon shortly after ...