Outer Space Vocabulary 2020

2. a mass of rock and ice and gases that has a VERY large orbit around the Sun and when it gets close enough the ice vaporizes to result in a 'tail'
7. the plural of the word 'supernova'
9. a group of millions of stars & planets & gases
10. a spherical mass of rock or gas that orbits around a star
11. a mass of hydrogen gas that does nuclear reactions, releasing radiation such as light
13. the type of end star that OUR sun will become in about 5 billion more years
14. the color and size classification of our star - the Sun
16. a star (or a pair of stars) and the objects that orbit around that star
20. Jupiter, Saturn, Neptune and Uranus
22. all of the energy and matter that exists
24. Mercury, Venus, Earth and Mars
25. the element formed during fusion reactions inside of massive stars and results in the formation of a supernova
26. the distance that light can travel in one year
27. a bright and explosive burning as one star's gas falls into a nearby star

1. the distance from the Earth to the Sun
3. a rock that burns up and releases light as it falls through Earth's atmosphere
4. the most famous dwarf planet in our solar system
5. a huge cloud of gases and dust in outer space
6. the stage of a star's existence when it expands to become very much larger than it was as a mature star
8. the gas element that stars use as their fuel for doing nuclear fusion
12. a "failed star" that is not quite large enough to begin doing nuclear reactions
15. a rock from outer space that hits the surface of the Earth
17. a solid mass that orbits around a planet
18. a very dense and massive area in space that has enough gravity to attract light and results after a super massive star collapses
19. one rock of around 820 000 that orbit around the sun in a particular area
21. a huge explosion that occurs at the end of the existence of very large stars with a size of many solar masses
23. the main type of radiation produced by our local star - which all life on Earth depends upon