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

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

A mysterious "rogue" planet has been observed gobbling six billion tons of gas and dust a second—an unprecedented rate that ...

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 ...

On some, whipping winds send a rain of glass flying sideways; others have a core of carbon compressed into diamond. Take a look.

However, seismic anomalies detected on Mars by the InSight mission reveal that the mantle is far from smooth and contains rough lumps of ancient fragments up to 4km wide, preserving the planet’s ...