The water that makes up the oceans acted as a key ingredient for the development of life on Earth. However, scientists still ...

Astronomers believe they've discovered a spiral structure inside the Oort cloud that surrounds our solar system.

A 7-planet alignment will be visible in the skies Friday, weather permitting. Here's what to know and how to see the planetary alignment.

Pluto may not be a planet any more, but you still have a chance to see the distant dwarf planet at one of Michigan's ...

Seven planets will align in a rare planetary parade, offering a view of five planets visible to the naked eye in the night ...

Most of the planetary alignment, which is colloquially referred to as a planet parade, will be visible to the naked eye just after sunset Friday, according to Preston Dyches, writer and producer of ...