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

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

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 ...

A quartet of small, rocky exoplanets likely circle Barnard's Star, around 6 billion light-years from Earth, putting them in ...

Firefly Aerospace on Monday announced the conclusion of its Blue Ghost lunar lander mission, declaring it the first “fully ...

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

But in a wonderful bit of cosmic serendipity, the moon is also 400 times closer to us, which results in the solar and lunar disks appearing to be exactly the same size in our sky, making for a ...