Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

This summer, scientists spotted an incredibly rare visitor to Earth’s solar system—a comet, now known as 3I/ATLAS, that entered our solar system from the galaxy beyond and is zipping past the sun at a ...

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

"Though our Mars orbiters continue to make impressive contributions to Mars science, it's always extra exciting to see them responding to unexpected situations like this one." When you purchase ...

A meteorite found in the Sahara is forcing scientists to rethink what kinds of worlds once circled the young sun. The rock, ...