| meteor | another name for a shooting star |
| Yuri Gargarin | first human in space |
| Jupiter | the largest planet,has a red spot |
| White Dwarf | an old, cold star |
| asteroids | bits of space rock between Mars and Jupiter |
| Pluto | the smallest, coldest planet |
| Sun | closest star to earth |
| Mercury | scorched planet, closest to sun |
| Gravity | a force caused by mass |
| Supernova | an old star that is dying, very bright, exploding star |
| Mars | the red planet, half the size of Earth |
| Sputnik | the first man-made satellite in space |
| Solar System | all things that orbit the sun |
| Orion | a constellation of a hunter in space |
| Venus | the morning star |
| The Milky Way | the name of the galaxy that the earth is part of |
| constellation | a pattern of stars in the sky |
| galaxy | a group of about 100 billion stars |
| space | no air to breath, weightlessness, cold, no food or water |
| Black Hole | formed when a star has such a large mass and gravity that not even light can escape from it |
| Yellow star | a young star |
| Arcturus | an example of a red giant |
| The Moon | has many craters, because there is no atmosphere to burn up the asteroids before they hit |