Science & Space Crossword — 16 September 2026

Across

1. 3. The lowest layer of Earth's atmosphere, where weather occurs. (11)
2. 4. Interstellar cloud of gas and dust, often a star nursery. (6)
3. 6. A vast system of stars, gas, and dust in space. (6)
4. 10. The universe seen as a complex and orderly system. (6)
5. 11. Range of electromagnetic radiation types (8)
6. 12. Devices orbiting planets, often for communication or research. (10)

Down

1. 1. Spinning mass of fluid or air creating a whirlwind effect. (6)
2. 2. A red dye often used in histology for staining tissues. (5)
3. 5. Lightest metal, used in batteries and mood stabilisers. (7)
4. 7. Substance that annihilates matter upon contact. (10)
5. 8. The four-dimensional fabric of the universe. (9)
6. 9. Remains of ancient organisms preserved in rock. (6)