Out of this world

2. A cloud of gas and dust in outer space, visible as a bright patch against a dark background of stars.
3. Relating to the sun, used to describe phenomena that are influenced by the sun's energy and magnetic field.
12. An instrument used for viewing distant objects, particularly in space.
13. A vehicle designed to travel in space, including satellites, probes, and manned spacecraft.
15. A celestial body orbiting a star, has enough mass to be nearly spherical and cleared its orbit of debris.
16. A small rocky or metallic body that enters Earth's atmosphere and burns up, also called a shooting star.
18. A small, rocky object that orbits the Sun, mainly between Mars and Jupiter in the asteroid belt.
19. Relating to the moon or to a month, used to describe phenomena that are influenced by the moon's gravitational pull.
20. A massive, luminous ball of plasma held together by its own gravity.

1. A rare event in which a star explodes, becoming temporarily brighter than the entire galaxy it inhabits.
4. The path of an object as it revolves around another object in space.
5. A vehicle propelled by the expulsion of gas produced by burning fuel.
6. A garment worn by astronauts to protect them from the harsh conditions of space.
7. Occurring or situated between stars.
8. A celestial object consisting of a nucleus of ice and dust that forms a coma (atmosphere) and sometimes a tail when it approaches the sun.
9. A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
10. hole An object in space with a gravitational pull so strong that nothing, not even light, can escape it.
11. A Russian astronaut, from the Russian word "kosmonavt."
14. The force that attracts two bodies toward each other, dependent on the masses of the objects and the distance between them.
17. A planet that orbits a star outside of our solar system.