Astronomy

4. a number of meteors that appear to radiate from one point in the sky at a particular date each year, due to the earth regularly passing through them at that position in its orbit.
5. Type of comet tail, caused by an interaction between the solar wind and the cometary plasma
6. The dark spots that appear on the sun's surface and are usually cooler.
10. A small, rocky object that orbits the Sun.
11. The closest planet to the Sun.
15. A planet in the solar system, which is called "Red planet".
16. The lowest layer of the Sun's atmosphere.
17. A collection of comets, where they come from.
18. The Solar System's snowballs.
19. The outer layer of the Sun's atmosphere

1. Combination of two atomic nuclei.
2. A giant, spinning storm in Jupiter's atmosphere.
3. a fragment of spatial matter that falls to the surface of a planet.
6. happens when the Moon passes between the Sun and Earth, casting a shadow on Earth that either fully or partially blocks the Sun's light in some areas.
7. A celestial body that only meets two out of the three formal criteria to be considered a planet.
8. A subatomic particle with very little mass
9. A dense, skinny strand of dark matter and galaxies.
12. The only planet in solar system which has life.
13. A small rocky body orbiting the sun.
14. A science that studies outer space and objects there.