In 2006, Pluto was famously demoted from a planet to a dwarf planet. It remains the most famous dwarf planet today, but there are others in our solar system, including potentially hundreds that ...

Picture a star, about half the sun’s mass shining with a dim red light. Lumbering around it on a 5,000-year orbit is a huge ...

Twenty years after Pluto lost its planetary status, the debate continues as scientists still disagree over what defines a ...

Two decades after Pluto was reclassified as a dwarf planet, scientists remain divided over the definition that removed it ...

The planet likely lost whatever volatiles it had long ago, and the red dwarf star it orbits is responsible. Gliese 367 is a red dwarf star (M dwarf) about 30 light-years away with three known ...

Even though exoplanet science has advanced significantly in the last decade or two, we're still in an unfortunate situation. Scientists can only make educated guesses about which exoplanets may be ...