By the time the star becomes a white dwarf, any planet that was habitable ... as well as through gravitational interactions between planets. Our own solar system, for example, had a migration ...

Two dwarf planets within our solar system, named Eris and Makemake, might exhibit enough geothermal activity to maintain oceans of liquid water within, according to modeling that describes new ...

The Solar System doesn't get much colder than the Kuiper Belt. Out past the orbit of Pluto, far from the warmth of the Sun, drifts a vast expanse of icy rocks and dwarf planets thought too cold to ...

The building blocks of life could have been delivered to solar system dwarf planet Ceres by one or more space rocks from the outer asteroid belt. NASA OSIRIS-REx asteroid sample return team has ...

Scientists have found a ring around an unassuming mini-planet in our Solar System to debunk ... "full" planet in our star system since Pluto was downgraded to dwarf status in 2006.

Best known for driving demotion of Pluto to dwarf planet, astronomer Mike Brown discusses the next horizons in our solar system, including the hunt for the elusive Planet 9. This article was ...