| Answer | Crossword Clue |
|---|---|
| SHIM | It just fills up space |
| SHIM | One just filling up space |
| SHIM | It takes up space |
| micrometeoroids | A microscopic particle in space or of extraterrestrial origin that is small enough so that if it enters the earth's atmosphere, it will not burn up but drift to the earth's surface instead |
| micrometeoroid | A microscopic particle in space or of extraterrestrial origin that is small enough so that if it enters the earth's atmosphere, it will not burn up but drift to the earth's surface instead |
| MIR | It was up for just over 15 years |
