The object orbits a brown dwarf that orbits a star, and astronomers aren’t sure if it’s a planet, a moon — or something else entirely.

The full moon has been an object of fascination for all of human history, and August's full moon is no exception. Here's what ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't been for lack of trying. According to a new paper by Thomas Winterhalder of ...

For two nights, the moon will host a cosmic party with three planets – Mars, Saturn and Uranus – that will be visible in the US and beyond.

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This ...

This week, the Moon will appear Full from Tuesday evening through Thursday morning.

Add Yahoo as a preferred source to see more of our stories on Google. Skywatchers across the U.S. are about to be treated to a dazzling weekend filled with not only two active meteor showers, but a ...