Across
- 2. Organizations are considering ideas such as ________, harpoons, tethers, and robotic arms to remove the orbital debris that surrounds us.
- 5. In space, blue skies appear __________ because of a lack of oxygen.
- 6. A solar system comprises of a ________ which is orbited by planets.
- 8. __________ 1 is the probe furthest from Earth, now reaching interstellar space!
- 10. Pluto is an example of a _______ planet, a planet which is too small to be considered a “normal” planet.
- 11. The _______ space telescope is the oldest telescope in space.
- 12. The furthest humans have ever traveled in space was during the __________ 13 mission.
- 13. The _________ Space Station was sent into space in 1998 and was not officially completed until 2011. Maintenance missions still run to improve the station and keep it running.
Down
- 1. Orbital ______ is caused from both natural causes such as meteoroids as well as human trash such as broken and abandoned spacecraft.
- 3. Our star is called the ______.
- 4. The force of ________ pulls nebulae (star dust) together to form the core of the star.
- 5. Orbit is a __________ balance between an object's forward energy and the pull of gravity on that object.
- 7. The ________ of a red supergiant star is quite aggressive and explosive.
- 9. A _______ is anything that orbits a planet or a star, not always an orbiting machine sending us signals from space.