Our readers enjoy getting to grips with this one, pondering everything from what this planet might look like to the various ...

Astronomers have spotted a Saturn-sized world drifting through a region of space that theory once said should be almost empty, a so‑called Einstein desert where planets are notoriously hard to find.

In space, planets are supposed to orbit their stars in roughly the same direction that the star itself spins. It is a rule that comes naturally from the way solar systems are born from giant spinning ...

In context: NASA estimates that a single galaxy may harbor trillions of rogue planets. These starless worlds drift alone through interstellar space and have no parent star. They remain challenging to ...

Mankind venturing into space ended up creating more questions than it answered, and one of the dilemmas is related to the planet sizes. Astronomers have found plenty of rocky super-Earths and plenty ...