Complete Clue List
Across
1. Second biggest planet in our solar system
4. Asteroid named after a Greek nymph who could only repeat what others said
7. French word for 'you'
9. After the Palomar-Green survey this one was set up to find bright southern hemisphere stars (Init)
10. A moon of Saturn, also the lady in Greek myth who opened a Box
12. 1920 science fiction play by Karel Capek introducing the word 'robot' (main title is these initials)
14. Red dwarf star and a planet in Virgo constellation and name of an ice shelf in Antarctica
15. Saturn's largest moon
17. Earth became the perfect or ___ planet to support human life
19. Due to its atmosphere and temperature Venus is not the ___ of planet where we could live unprotected
21. Our Moon's gravitational influence causes Earth's tides to ___ and flow
23. A northern hemisphere constellation for which an English name is 'the snake'
25. Astronomers investigate these hitherto unknown (but not necessarily flying) things (Init)
27. Child's word for 'thank you'
28. Postal abbreviation for Illinois
29. Small moon of Pluto, named after the mythological river between worlds of the living and the dead
30. One of eight such bodies orbiting our sun
Down
1. Our nearest one is the Sun
2. Measurement of length used in astronomy and equivalent to nearly 150 million kilometres (Init)
3. Jupiter, Uranus, Neptune and Saturn all have a number of these
4. Make a mistake
5. Neil Armstrong made history when ___ stepped onto the Moon
6. Describes the position of two bodies when they are at 45 degrees from each other, AKA octile
8. This Cloud is hypothesised as a giant area of many small bodies which surrounds our solar system
10. Second largest moon of Neptune, also a shape-changing sea god in Greek mythology
11. AKA Alpha Scorpii, this star in the Scorpius constellation is an anagram of 'SEAT RAN'
13. Ancient city in what is now Iraq and birthplace of Abraham
16. Binary star and the brightest one in our sky, also called the Dog Star
18. The star Vega is in this small constellation, whose name means 'lyre' in English
19. This type of hot star appears to have a gas ring or ___ around it
20. Chemical symbol for terbium
22. The Kuiper ___ is a very large ring of icy objects which orbits the Sun at a great distance
24. Meade Instruments telescope model
26. The earlier part of the Bible telling about times before Christ was born (Init)
28. Latin term for 'that is' (Abbrev)