Most people learned in school that Mercury is just a small, scorched planet close to the Sun. But NASA’s MESSENGER mission ...

It's unlikely you'll be able to walk outside and see a line of planets, but according to NASA, a seven-planet parade happening tonight could be visible in some form in parts of the U.S. The upcoming ...

A rare planetary alignment will take place on Friday, Feb. 28. Seven planets will be visible, with most of them being visible to the naked eye. February will be closing out with a "great evening ...

NASA/JPL-Caltech Sky gazers across the U.S. will have a chance to see an extraordinary celestial event on Friday as all of the planets in our solar system will appear in the evening sky. This ...

According to NASA, the planetary phenomenon will be clearest about 45 minutes before sunrise, low in the eastern sky and appearing near the moon. Venus and Saturn will be the easiest to spot — but for ...