Most of the comets and asteroids astronomers track were born in the solar system and are bound to loop around the Sun ...

Earth is far from the only celestial body in the Solar System.

The Solar System seems calm, but that tranquility is more fragile than it appears. Now imagine one day looking up and ...

A distant 'exomoon' the size of Jupiter is changing how we think about the cosmos.

It may not feel like it, but everything in the universe is in constant motion. Our Sun, with all its planets, orbits the center of the Milky Way, flying through the cosmos at around 450,000 miles per ...

Our moon is closer in size to Earth than any other moon in the solar system is to its associated planet, however it is far from the largest moon around.

Astronomers have revealed new details about the make-up and age of a visiting comet that was born around a distant star. They conclude that the composition of 3I/Atlas is strikingly different from any ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our solar system that could support life in some form.

On August 25th, 2012, humanity became an interstellar species. There was no fanfare or galactic welcome party as a humble robotic probe, the Voyager 1 spacecraft, crossed an invisible threshold. It ...

Since the first planet beyond our solar system was confirmed in the 1990s, astronomers have gone on to catalogue more than 6,000 exoplanets, yet not a single moon orbiting any of them has ever been ...