A tiny core. A sky-sized show.
Comet nuclei are only a few hundred meters to tens of kilometers across. Yet their activity can paint the sky with structures far bigger than planets.Comets: Tiny Nuclei, Colossal Comas
Comas dwarf worlds
Outgassing builds a ghostly coma that can reach 15 Earths wide. Tails can stretch beyond 1 astronomical unit.Comets: Tiny Nuclei, Colossal Comas
