A meteoroid is a small rocky or metallic body in outer space.
SPACE STARS
A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
SPACE ASTEROID
Asteroids are minor planets, especially of the inner Solar System. Larger asteroids have also been called planetoids. Asteroids are mainly composed of mineral and rock.
SPACE COMET
A comet is an icy, small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process called outgassing. Comets are primarily composed of dust and ice.