Out past Neptune are countless small icy and rocky bodies called Trans-Neptunian Objects (TNOs), and many of these have moons ...

The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the ...

The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The ...

Astrology deciphers the unique energies and influences of planets on human lives. Luminaries like the Sun and Moon shape core ...

Plus: Observe two stunning spirals, see Venus reappear as a morning star, and enjoy the Last Quarter Moon in the sky this ...

The discovery points to what astronomers have thought for decades, that Saturn's rings were caused by a massive collision ...

The sheer number of objects suggests scientists will soon have to grapple with what counts as a moon versus what’s just a ...

This month, a total lunar eclipse and blood moon will be viewable across the U.S. Here's the best times and places to view ...

Venus will pass between the Earth and sun during what’s called an inferior conjunction. But don’t plan on seeing the linkup.

The first total lunar eclipse in more than two years lit up the sky last night as humanity, forever fascinated with the Earth ...

Besides, storms were on the way. When I stepped outside after supper to see whether setting my alarm made any sense, all I ...

The moon is fully in Earth's shadow. At the same time, a little bit of light from Earth's sunrises and sunsets (on the disk of the planet) falls on the surface of the moon. Because the light waves ...