A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

We know that our Solar System is not the blueprint for all planetary systems out there. There are gas giant planets orbiting ...

Their observations of a faint, cool M-dwarf star called LHS 1903 revealed a system with a rocky world at its outer edge. LHS 1903 is an ancient star, around seven billion years old, and only has about ...

Astronomers have spotted an unusual 'inside-out' planetary system where a rocky world seems to have formed far beyond the realm typically reserved for gas giants.

With this new survey, astronomers have gained a peek inside a stage of exoplanet system formation they have yet to fully ...

LONDON — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have ...

Our solar system is a smashing success. A new study suggests that from its earliest period — even before the last of its nebular gas had been consumed — Earth’s solar system and its planets looked ...