Science & Space Crossword — 28 August 2026

Across

1. 3. Branch of science studying substances and their reactions (9)
2. 5. Subatomic particle with a positive charge, key to atoms. (6)
3. 7. Subatomic particle with a negative charge, vital for chemistry. (8)
4. 8. Person trained for space travel and exploration (9)
5. 11. Astrological circle dividing the sky into twelve signs (6)
6. 14. Most abundant element in the universe, essential for stars. (8)
7. 15. Relating to Earth's natural satellite, the Moon. (5)
8. 16. Field concerned with aircraft and spacecraft design (9)
9. 18. Region of space with gravitational pull so strong that nothing escapes. (9)
10. 19. Study of celestial bodies' influence on human affairs (9)
11. 21. Study of celestial bodies and their movements. (9)
12. 22. Study of matter, energy, and the forces of nature (7)

Down

1. 1. Eighth planet from the Sun, known for its deep blue colour. (7)
2. 2. Fundamental force keeping planets in orbit around the sun. (7)
3. 4. Celestial body with a tail, often seen near the Sun. (5)
4. 6. A form of matter consisting of charged particles. (7)
5. 7. Imaginary line dividing the Earth into northern and southern halves. (7)
6. 9. An astronomical explosion marking the death of a star. (4)
7. 10. All of space and time, including all matter and energy. (8)
8. 12. Baroque scientist known for his telescope advancements (7)
9. 13. Study of living organisms and their interactions (7)
10. 17. Highly magnetic, rapidly spinning star emitting beams of light. (6)
11. 20. Man-made object orbiting Earth or another celestial body. (9)