Astronomers have long thought solar systems follow a simple pattern similar to our own: small, rocky worlds orbit close to ...

A closer look at the planets around a star called LHS 1903 may just flip our understanding of how planetary systems form.

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

Astronomers have found a distant world that challenges planetary formation theory, with a rocky planet where gas giants should be.

Since the 1990s, scientists have discovered approximately 6,100 planets outside our solar system, called exoplanets.

Gas giants possibly developed slowly in the solar system. They developed cores layer by layer within a disk of ice and dust ...

Astronomers have found a rocky planet where it should not exist, orbiting far from a cool red star. Could this strange ...

Scientists have identified a rocky outer planet in a system where a gas giant was expected. The discovery challenges ...

A global team of astronomers, led by the University of Warwick, have used a European Space Agency (ESA) telescope to discover ...

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

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.