Minor Planets
Scientists Found More Than 100 Tiny Worlds Hidden in the Solar System
A telescope looking for dark matter discovered 139 new minor planets lurking beyond Neptune's orbit, which could help scientists look for hidden planets in the outer solar system.
Search for Planet Nine Turns Up Dwarf Planet at the Edge of Our Solar System
The world called 'Goblin' orbits about two times farther from the Sun than Pluto—and that's at its nearest point.
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