| # | ASTRONAUT | A spaceperson
|
|---|
| 1 | ASTEROID | A rock orbiting the Sun |
| 2 | ASTRONOMY | The study of space |
| 3 | ATMOSPHERE | Gases surrounding a planet |
| 4 | COMET | Halley's is one |
| 5 | CORE | The centre of a planet |
| 6 | CORONA | The Sun's atmosphere |
| 7 | CRATER | You can see many of these on the Moon |
| 8 | EARTH | Our home planet |
| 9 | ECLIPSE | When the Moon blocks out the Sun |
| 10 | EQUATOR | A line around the middle of the Earth |
| 11 | FULL | A phase of the Moon |
| 12 | GALAXY | A very large collection of stars |
| 13 | GRAVITY | Force acting on planets from the Sun |
| 14 | HYDROGEN | Gas that the Sun is made from |
| 15 | IO | One of the moons of Jupiter |
| 16 | JUPITER | Largest planet in the solar system |
| 17 | LIGHT | Comes from the Sun |
| 18 | MARS | Sometimes known as the red planet |
| 19 | MERCURY | Closest planet to the Sun |
| 20 | MOON | Orbits the Earth | once a month |
| 21 | NEBULA | Glowing gas in space |
| 22 | NEPTUNE | Sometimes is the most distant planet |
| 23 | NEW | Phase of the Moon when it can't be seen |
| 24 | NINE | The number of planets |
| 25 | ORBIT | The Earth does this around the Sun |
| 26 | OXYGEN | Gas needed by astronauts |
| 27 | PLANET | The Earth is one of these |
| 28 | PLUTO | The Last planet to be discovered |
| 29 | RADIO | A telescope that you don't look through |
| 30 | RINGS | Found around Saturn |
| 31 | ROCK | What much of the Earth is made of |
| 32 | ROCKET | You need one to get into orbit |
| 33 | SATELLIE | Orbits the Earth |
| 34 | SATURN | The planet with the rings |
| 35 | SEASONS | Spring Summer Autumn & Winter |
| 36 | SHUTTLE | America's space plane |
| 37 | STAR | Our sun is one of these |
| 38 | SOLAR | Anything to do with the Sun |
| 39 | SPOT | There is a large red one on Jupiter |
| 40 | SUN | The centre of our solar system |
| 41 | TELESCOPE | Used to study space |
| 42 | TIDES | The Moon causes these on the Earth |
| 43 | TWO | The number of moons of Mars |
| 44 | UNIVERSE | Everything everywhere |
| 45 | URANUS | A planet with rings |
| 46 | VENUS | A plant next to the Earth |
| 47 | VOYAGER | The name of a space probe |
| 48 | YEAR | About 365 days for the Earth
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