the.com/planetary birth
gravity throwing a party, and dust deciding to become a world.
means the process by which planets form from clumping gas and dust in the swirling disk around a young star.
from astronomers pieced this together from studying protoplanetary disks around infant stars, first directly imaged only in the 1990s, confirming what solar system leftovers like asteroids had long hinted at.
timescalemillions of years, not overnight
starting materialdust grains smaller than sand
leftover proofasteroids are unfinished planetary debris
visual evidencealma telescope images rings in disks