Artist's illustration of a pancake-shaped comet in deep space outgassing a whitish cloud of hydrogen. How do you tell the difference between a spaceship and a space rock? For astronomers like me, this ...

Interstellar object 3I/ATLAS is confirmed as a natural comet from beyond our solar system, posing no threat to Earth despite ...

The newly identified cluster of Kuiper Belt objects lies about 4 billion miles from the Sun, offering fresh clues about how ...

The outer reaches of our Solar System continue to reveal a complex dynamical environment where the interplay of gravitational forces shapes the orbits of a myriad of distant bodies. Research in this ...

When 'Oumuamua traversed our solar system in 2017 it was the first confirmed Interstellar Object (ISO) to do so. Then in 2019, Comet 2l/Borisov did the same thing. These are the only two confirmed ...

I/ATLAS, the interstellar object discovered in 2025, reveals the estimated population, composition, and distribution of ...

New telescopes will give breathtaking insight into what, or who, is visiting Earth's neighborhood. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works ...

Scientists have been cataloging comet 3I/ATLAS’s journey through the Solar System since July, tracking major milestones as ...

‘Oumuamua, the first interstellar object discovered near the Earth, left us with more questions than answers. The visitor was first observed during its exit from the solar system, and the limited data ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Oumuamua may not be as unusual as we thought. As our Solar System makes its 230 million-year orbit around the outer edges of the Milky Way galaxy, it occasionally passes by bits of cosmic jetsam ...