In the time Pluto was found, classified as a planet and reclassified as a dwarf planet, it has not completed one orbit. One ...

The rings around Quaoar are too faint to be seen by a telescope Previously unseen rings around a dwarf planet on the edge of our solar system have been discovered using a camera developed at the ...

On a small dwarf planet called Makemake, astronomers have seen signs of surprising temperature changes. These could indicate that the tiny world, which is about 45 times further from the sun than ...