This phenomenon, known as a "planet parade," will feature Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune all ...

If you gaze upward tonight after sunset, you might catch the six-planet parade, with Mars, Jupiter, and Uranus in the southeastern sky and Venus, Saturn, and Neptune in the southwest. Mercury will ...

While a few planets lining up in the night sky isn't rare, NASA says that more than four in alignment is unusual.

Located 2.5 million light-years away, the majestic Andromeda galaxy appears to the naked eye as a faint, spindle-shaped object roughly the angular size of the full moon. What backyard observers don't ...