The distant world WASP-121b is so hot that it hosts metallic clouds and rains gems. Astronomers discovered the gas giant planet — dubbed a "hot Jupiter" — in 2016, but have continued to investigate ...

Astronomers are just beginning to scratch the surface of the complex, and sometimes violent, relationships between planets ...

A strange 200 million-year-old object with the mass of a planet has been discovered 20 light-years from Earth, outside our solar system. The "rogue," as it's referred to by researchers, is producing ...

NASA scientists have reported an unusual signal in near-Earth space, describing a phenomenon they have not previously ...

Venus is often called Earth's evil twin due to its size, mass, material composition, and density. It even feels like Venus should've become a second Earth. However, it ended up being one of the ...

A distant world may have formed inside a doomed star. This star was ripped apart by its smaller, denser companion – a dense stellar corpse called a white dwarf – and the planet could have formed from ...

Astronomers are investigating a strange class of exoplanets known as eccentric warm Jupiters — massive gas giants that orbit their stars in unexpected, elongated paths. Unlike their close-orbiting ...

The discovery of a strange wobbling planet has left astronomers confused but could reveal the secrets of planet formation. The new exoplanet, named TOI-1408 c, is situated about 455 light-years from ...

Meet HD 98800, a nearby quadruple‑star system in the constellation Crater. It sits about 150 light‑years away and is 10 million years old.