Across
- 5. Scientific field studying life in the universe
- 8. Abbreviation for Earth's only permanently crewed space station
- 9. Bubble-like region influenced by the solar wind
- 12. Icy moon of Jupiter suspected to harbor a subsurface ocean
- 15. NASA spacecraft designed for deep-space missions
- 16. Region of the solar system beyond Neptune, home to Pluto
- 17. Region of space between stars
- 22. Historic NASA program that landed humans on the Moon
- 23. NASA's current program aiming to return humans to the Moon
- 24. Clue
- 25. Condition experienced by astronauts in orbit
- 26. Saturn’s largest moon, with a dense atmosphere
- 27. Orbiter that studied Saturn and its moons from 2004–2017
- 29. Mars rover that landed in Gale Crater in 2012
- 30. First human spaceflight program by the Soviet Union
Down
- 1. Russian rocket scientist often called the "father of astronautics"
- 2. NASA probe launched in 1977, now in interstellar space
- 3. Ice volcanoes that eject volatiles like ammonia or methane
- 4. Chemical indicator that suggests the presence of life
- 6. Layer of loose, fragmented material on the surface of the Moon or Mars
- 7. Device used for adjusting a spacecraft’s velocity or position
- 9. Type of orbital transfer named after a German engineer
- 10. Speed needed to break free from a celestial body’s gravity
- 11. Infrared space telescope launched in 2021 to succeed Hubble
- 13. Mars rover launched in 2020 to search for signs of life
- 14. Major hazard for astronauts in deep space
- 18. A planet located outside our solar system
- 19. First artificial satellite, launched in 1957
- 20. First human in space
- 21. Reusable heavy-lift launch vehicle developed by SpaceX
- 28. Private aerospace company founded by Elon Musk