A very rare treat is about to grace Earth's night skies.

But in the grand scheme of the solar system, Earth's Moon isn't as big as you might think. Oberon is Uranus’s second-largest ...

Mercury, Venus, Mars, Jupiter, Saturn, Uranus, and Neptune align in a rare celestial event, the last until 2040—coinciding ...

Stark residents will be able to view a total lunar eclipse March 13-14, but won't see the solar one a few weeks later.

Clear your calendars for February 28, 2025, because something extraordinary is about to happen in the sky– something you’ll ...

A rare full seven-planet alignment will be visible in the early night sky between Feb. 22 and 28. We have the tips you need ...

The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it ...