All of our solar system’s planets are lining up in the night sky at once this week. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known as a great ...

While the weather might be tough for seeing it tonight, there's a chance to see a 7-planet alignment in the skies tonight in New Hampshire and Maine. Supposedly, this will be the last such alignment ...

A rare celestial event on Feb. 28 will offer skywatchers the chance to witness a "planet parade" of all seven planets in our solar system outside of Earth. It's the last time this type of planetary ...