| A | B |
|---|
| ATMOSPHERE | THE AIR THAT SURROUNDS THE EARTH |
| CRATERS | HOLES IN THE GROUND SHAPED LIKE BOWLS |
| INCREDIBLE | AMAZING |
| PROBES | SPACECRAFT CARRYING SCIENTIFIC RECORDING INSTRUMENTS |
| SPACECRAFT | A VEHICLE USED FOR FLIGHT IN OUTER SPACE |
| ASTEROIDS | ANY OF THE THOUSANDS OF SMALL PLANETARY BODIES THAT REVOLVE AROUND THE SUN |
| HAZY | UNCLEAR; CLOUDED |
| METEORITES | MASSES OF STONE OR METAL THAT HAVE REACHED THE EARTH FROM OUTER SPACE |
| METEOROIDS | FALLEN METEORS |
| SOLAR SYSTEM | THE SUNA ND ALL THE PLANETS THAT REVOLVE AROUND IT |
