The transition of a star into a white dwarf can be catastrophic for surrounding planets. The process causes major changes in the star’s mass and radius, destabilizing planetary orbits.

the remaining gas planets inhabit deeper space. The solar system is also home to many other cosmic bodies including asteroids, moons and dwarf planets such as Pluto. What's this? Oh noooo ...

A surprising chemical difference between Pluto and Sedna, another dwarf planet in the distant Kuiper Belt, is helping scientists nail down their respective masses, a new study reports. The Kuiper ...