Scientists have uncovered a surprising way to study the harsh space weather around young M dwarf stars. Mysterious dips in ...

For the first time in years, astronomers are seriously talking about adding a new member to the solar system’s planetary family. I’m not talking about reviving Pluto’s status, but about a potential ...

Planet 9 sits at the edge of scientific imagination, promising either an epic expansion of the Solar System or a lesson in how easily patterns can mislead us. As new data arrive and old assumptions ...

Astronomers witnessed planets colliding 11,000 light-years away, an event that could shed light on the collision that created Earth's moon.

We're starting to see just how exceptional our own solar system and its history is, as more exoplanets are discovered. A ...

Scientists have discovered a strange “liquid planet” covered in molten magma, challenging known planet types. Could more ...