WD 1856+534b—a freezing world with a surface temperature of -125 degrees Fahrenheit—exists where planets are normally scoured ...

Pluto is the most famous dwarf planet, due in part to its very public demotion from ninth planet of the solar system two decades ago. But a relatively obscure dwarf planet in the main asteroid ...

This dwarf planet, positioned between Mars and Jupiter, is the only inner Solar System body that could be considered an "ocean world." Scientists believe its icy subsurface could have preserved ...

The Sun’s huge gravitational field keeps many other objects - planets, dwarf planets ... the temperature decreases, for example, Mercury is 430 °C whereas Neptune is -200 °C the time taken ...