Imagine you’re out for a walk on a lovely day, with not a care in the world. The birds are singing, and the sun is shining.

Every few years, something slips through our cosmic neighborhood that doesn't belong here. It arrives from somewhere out past ...

Both inside and outside the solar system, aurorae light up the skies of planets, moons, and a variety of other celestial objects. With their emissions ranging from X-ray to radio wavelengths, aurorae ...

Astronomers have revealed new details about the makeup and age of a visiting comet that was born around a distant star. They ...

Researchers have been focusing on the study of our solar system for centuries, looking at the physics, dynamics, as well as the composition of solar system bodies. Our solar system – which includes ...