Astronomers have found a distant world that challenges planetary formation theory, with a rocky planet where gas giants should be.
The planetary system, located 120 light-years away, features four worlds orbiting a red dwarf star and challenges classical formation schemes.
Far beyond Neptune, in the frozen depths of the Kuiper Belt, many ancient objects oddly resemble giant snowmen made of ice ...
The newborn planetary system appears to be emerging 1,300 light-years away around a baby star known as HOPS-315. Planet-forming materials were first identified using NASA's James Webb Space Telescope.
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