A thick layer of haze around the ultra-low-density planet Kepler-51d likely obscures not only the strange planet's ...

Researchers discovered a huge planet 1,200 light years from Earth with a density comparable to that of cotton candy, scientists said Monday. WASP-193b is an exoplanet, which means it's located outside ...

Physicists at Columbia University in the US say they may have found evidence for a phenomenon in which a superfluid suddenly ...

Four planets orbiting a newly born star in our galaxy are so light that they have the density of polystyrene, and could provide a key missing link in helping us understand how the most common ...