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

Artist impression of the planetary system with four planets,around a small red star,called LHS1903. Caption: Astronomers have long thought solar systems follow a simple pattern similar to our own: ...

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

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

A distant star system with four super-sized gas giants has revealed a surprise. Thanks to JWST’s powerful vision, astronomers detected sulfur in their atmospheres — a chemical clue that they formed ...

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how planets form.

Typically, from what astronomers have gathered thus far, star systems follow a tidy logic: small, rocky worlds huddle close to the warmth of their star, while massive gas giants bloat up in the colder ...

Gas giants are massive worlds made mostly of hydrogen and helium. They lack solid surfaces, and in our solar system, Jupiter ...

Relatedly, astronomers may have just pushed the upper size limit of what counts as a planet.

New simulations suggest Jupiter holds far more water than once thought, reshaping ideas about how the largest planet formed.

Astronomers say a newly discovered solar system about 116 light years from Earth is challenging long held ideas about how planets form.According to CNN, researchers using telescopes from NASA ...

Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don't ...