Space has a knack for bending our sense of scale. The Moon feels close enough to touch—after all, we see its craters with ...

Small icy moons in the outer reaches of our solar system may hide boiling oceans underneath their surfaces, a new study finds ...

The outer planets of the Solar System are swarmed by ice-wrapped moons. Some of these, such as Saturn’s moon Enceladus, are ...

While the crater-pitted moon may appear geologically dead, researchers have discovered more could be going on under its icy ...

Small icy moons may have hidden oceans that briefly boil under thick ice. Changing pressure inside these moons shapes their ...

"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system.

We tend to think of the weather as mundane, the sort of boring things you talk about when you have nothing else to say, but in the scope of the solar system, it’s one of the most interesting things ...

The Solar System is more than just planets; it is home to a dazzling variety of moons, each with its own unique charm. Some ...

There are several frozen moons in our solar system, orbiting the gas giants. Some of them, despite having temperatures that would make Antarctica feel tropical, have liquid water under the surface.

But on larger icy moons, the ice layer may break up before the water boils, preventing the formation of a boiling ocean.

It takes light a single day to travel 16 billion miles. The Voyager 1 probe will need a little longer, just 49 years.