amino acids

meteorite

asteroid

meteoritic swarm

asteroid belt

meteoroid

carbonaceous chondrite

minor planet

coma (of a comet)

near-Earth object (NEO)

comet

nucleus (of a comet)

differentiated asteroid

Oort cloud

dust tail

orbital resonance

fusion crust

radiation pressure

Hirayama family

short-period comet

hydrogen envelope

stable Lagrange points

iron meteorite (iron)

stony iron meteorite

ion tail

stony meteorite (stone)

Jupiter-family comet

supernova

Kirkwood gaps

tail (of a comet)

Kuiper belt

Trojan asteroid

long-period comet

undifferentiated asteroid

meteor

Widmanstätten patterns

meteor shower