A low-density, puffy planet orbiting relatively far from a young star in a nearly perpendicular orbit. What's going on?

A mysterious "rogue" planet has been observed gobbling six billion tons of gas and dust a second—an unprecedented rate that blurs the line between planets and stars, astronomers said Thursday.

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 ...

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 ...

Astronomers have discovered an alien world that defies every planetary rule with its massive size, low density, and tilted ...

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 ...

Mars has fascinated scientists for decades, particularly its intriguing gullies etched into the sandy dunes of theRed Planet.

Strange blobs found inside Mars by Nasa’s InSight lander may be remnants of the ancient “embryo” that eventually developed into the planet we see today, according to a new study. The findings, ...

This handout artist’s impression released on October 2, 2025 shows Cha 1107-7626, a rogue planet located about 620 light-years away about 5-10 times more massive than Jupiter and doesn’t orbit a star.

A mysterious "rogue" planet has been observed gobbling six billion tonnes of gas and dust a second -- an unprecedented rate that blurs the line between planets and stars, astronomers said Thursday.