What kind of planets typically form close to the hot protostar core?
Answer
Terrestrial (rocky) planets
The thermal environment near the newly forming protostar is extremely hot. This intense heat acts as a filter, vaporizing lighter elements and volatile compounds like water and methane, effectively stripping them away from the inner disk regions. Consequently, only the heavier, refractory materials—metals and silicates—remain condensed and available to clump together. These rocky components build up into the cores of terrestrial planets, exemplified by Earth.
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