| RECON | Military exploration, for short |
| EVAS | Lunar-surface explorations, for short |
| SARDINES | On board, a way into starting exploration for fish (8) |
| NASA | Group known for planetary exploration: Abbr. |
| EREBUS | English detective's ship used for polar exploration |
| PROBE | Quietly put on attire for exploration |
| PROBATE | Will reviewing exploration take a short time? (7) |
| BATHYSCAPHE | Deep diving vessel for underwater exploration (11) |
| COOK | British naval captain best remembered for his voyages of exploration in the Pacific. (4) |
| SHACKLETON | Ernest ---, Anglo-Irish explorer who was knighted for his achievements in polar exploration (10) |
| VESPUCCI | Amerigo, Florentine navigator noted for his exploration of the coast of South America (8) |
| SPACESHIPS | Powered craft used for exploration of the solar system |
| JEFFERSON | President who bought the Louisiana Territory and arranged for its exploration |
| BRISTOL | City of southwest England, noted historically for its links with exploration and the slave trade (7) |
| ERNEST | --- Shackleton, Anglo-Irish explorer who was knighted for his achievements in polar exploration (6) |
| SPACE | Room for exploration as it appears between the lines (5) |
| ROVER | Type of buggy used for lunar exploration such as any one of the three used in the Apollo missions (5) |
| OBESE | Queen's decoration for initial space exploration is far too weighty (5) |
| SEARCHWARRANT | Before the scour of the property, a show of force, with exploration licence for copper (6,7) |
| BOONE | Daniel, early U.S. frontiersman noted for his exploration of Kentucky (5) |
