jpdb beta

asteroid

planetary exploration

outer planet

dwarf planet

inner planet

interplanetary cruise; planetary travel

terrestrial planet; telluric planet; rocky planet

artificial planet; man-made planet

planetary meteorology

planetary system; star system

planetary alignment; syzygy

space probe

rocky planet; terrestrial planet

gas giant (Jupiter, Saturn); giant planet (Jupiter, Saturn, Uranus, Neptune); Jovian planet

major planet; giant planet; Jovian planet

gas giant

planetesimal

interplanetary matter

ice giant (Uranus, Neptune)

terrestrial planet; rocky planet

planetary science

celestial event

planetary nebula