The asteroid belt between Mars and Jupiter was originally discovered in 1801.
Dark Matter makes up 27% of the mass and energy of the universe. It is not to be confused with with baryonic matter (normal matter).
Absorbs all matter, not even light can escape the gravitational pull of a Black Hole. They are the most dense objects in the universe.
Exo Planets are planets outside of our own solar system. The first exoplanet found was named 51 Pegasi B.
WEB DESIGN STUDENTS: LABIB AHMED, MICHAEL COBEY TEMPLATE SOURCE