Even the best telescopes can’t see exoplanets. It’s all about watching for jiggly stars, blue shifts, and transits.

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact ...

Rocky planets like our Earth may be far more common than previously thought, according to new research published in the ...

Perhaps it's time to rebrand.

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Astronomers are uncovering distant worlds beyond our solar system using ingenious indirect methods like observing stellar ...

An ultra-hot rocky exoplanet may be wrapped in a dense atmosphere, defying expectations about what small planets can sustain.

An artistic rendering of a dust and gas disk encircling the young exoplanet, CT Cha b, 625 light-years from Earth. Spectroscopic data from NASA’s JWST suggest the disk contains the raw materials for ...

Interstellar comet 3I/ATLAS makes its closest Earth approach on Dec. 19, offering astronomers a rare chance to study a visitor from beyond the solar system ...

Scorching planets that should be bone-dry may actually create their own water deep inside, forging oceans through molten rock ...

Hot Jupiters were once cosmic oddities, but unraveling how they moved so close to their stars has remained a stubborn mystery ...

The Pandora Space Telescope will study 20 promising worlds that could host life ...