Somewhere around 50 light-years from Earth, a dim red dwarf star called LHS 1903 hosts four planets arranged in an order that ...

Talk about a hot mess. Scientists have uncovered a hellish “lava world” where temperatures soar to a blistering 2,700 degrees Fahrenheit — hot enough to melt rock into a churning ocean of magma and ...

Scientists have discovered a bizarre planetary system where a rocky world orbits farther out than giant gas planets, defying ...

For decades, the solar system set the template: small rocky planets close to the star, gas giants farther out, beyond a ...

Astronomers spotted a potential Earth-size rocky world orbiting a white dwarf, suggesting a future in which our planet outlives its star. By Jonathan O’Callaghan In six billion years the sun will ...

Astronomers have spotted an unusual planetary system with a rebellious rocky planet orbiting well beyond where it would be expected to form. And in the newly spotted system of four planets, the first ...

Forbes contributors publish independent expert analyses and insights. Leslie Katz covers the intersection of culture, science and tech. A yellowish-orange glow bathes Phainoterra, a planet of dramatic ...

Tylos (or WASP-121b) is a gaseous, giant exoplanet located some 900 light-years away in the constellation Puppis. Astronomers have used four massive telescopes in Chile to look into a planet's ...

“Mars, can you please clean up your Legos?” “Jupiter, finish your peas.” “Don’t pull the cat’s tail, Mercury!” ...