A small planet of high density with a solid, rocky surface. The terrestrial
planets in the solar system are Mercury,
and Mars. The first terrestrial planet to be
found orbiting another star is OGLE-2005-BLG-390Lb.
|When the four terrestrial planets of the solar system
– Mercury, Venus, Earth and Mars – are placed side by
side, it's clear their size distribution is close to symmetrical,
with the two largest lying between the two smallest. Image: NASA
Compare with gas giant.
PLANETS AND SUBSTELLAR OBJECTS