SCIENCE PROJECT Crossword

minor planets, especially of the inner Solar System.
an icy, small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process called outgassing
is the gravitationally bound planetary system of the Sun and the objects that orbit it, either directly or indirectly
is the sixth planet from the Sun and the second-largest in the Solar System
is an astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity
is the third planet from the Sun and the only astronomical object known to harbor life
a description of the Universe with Earth at the center
is the astronomical model in which the Earth and planets revolve around the Sun at the center of the Solar System
is a small rocky or metallic body in outer space
is the second planet from the Sun, orbiting it every 224.7 Earth days