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

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

Astronomers studying a dim red dwarf star called LHS 1903 have found a four-planet system with an architecture that defies ...

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: ...

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 ...

Astronomers have long believed that planetary systems follow a familiar blueprint. Small rocky planets ...

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

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

A new study led by UNLV scientists sheds light on how planets, including Earth, formed in our galaxy – and why the life and death of nearby stars are an important piece of the puzzle. In a paper ...

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

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