If an antimatter meteor came into our solar system, we’d definitely know about it, says one reader, especially if it hit the ...

Modern astronomy is giving us unprecedented views of the asteroids, comets, and other small bodies that litter our cosmic ...

Astronomers confirm that 3I/Atlas is still intact, despite viral posts claiming it was destroyed near the Sun.

A rare interstellar visitor, comet 3I/ATLAS, is currently traversing our solar system, offering scientists a unique chance to ...

A powerful geomagnetic solar storm is helping to unveil northern lights across the United States. Here's how auroras become ...

As telescopes have become more powerful, it’s turned out our solar system is not the only game in town: There are millions of ...

"Jupiter didn't just become the biggest planet — it set the architecture for the whole inner solar system." Jupiter was shaping Earth's fate before our planet even existed, carving gaps in the early ...

Material around Chiron, a small icy world in the far reaches of the solar system, may be taking shape into a ring system of its own. The rare event is unfolding in real time, giving astronomers a ...

As a joke, she labelled it LGM 1 for “Little Green Men”, but the astronomers working on it did not really believe they had ...

Researchers rarely get a glimpse of an interstellar object up close like 3I-ATLAS, so they have jumped on the opportunity to learn about its composition, which can reveal how planet systems are made.