Galactic Crossword: Space Puzzles

3. The second largest moon of Saturn, known for its thick atmosphere and potential for harboring life.
5. The smallest dwarf planet in the asteroid belt between Mars and Jupiter.
7. The first artificial satellite launched into space by humans.
10. The farthest planet from the Sun, known for its cold and windy conditions.
12. This phenomenon occurs when the Earth’s magnetic field interacts with solar wind, creating colorful displays in the sky.
13. This type of planet has no solid surface and is primarily made up of gases like hydrogen and helium.
14. The gradual increase in the average temperature of Earth's atmosphere due to the greenhouse effect.
17. A major contributor to sea-level rise, this phenomenon is the melting of ice on this continent.
18. The process by which planets form from dust and gas in a protoplanetary disk.
19. The theoretical point in space where the expansion of the universe began.

1. A gas giant that has the shortest day of any planet in the solar system.
2. A region of space with so much gravity that even light cannot escape it.
4. The change in Earth’s climate patterns, attributed largely to the increase in atmospheric carbon dioxide from the burning of fossil fuels.
6. The thin, outermost layer of the Earth's atmosphere, merging with space.
8. This type of galaxy has a flat, rotating disk and is often spiral-shaped, like our Milky Way.
9. A massive explosion that occurs at the end of a massive star's life cycle, scattering elements across the universe.
11. The boundary around a black hole from which nothing can escape, not even light.
14. A network of satellites that provide location and navigation information on Earth.
15. This type of star has exhausted its nuclear fuel and collapsed into a dense, small remnant.
16. The branch of science that deals with the physical structure and substances of Earth, particularly its rocks.