Earth and Space Crossword

6. A highly magnetized rotating neutron star / white dwarf that emits a beam of electromagnetic radiation.
8. A phenomenon that describes an increase /decrease in the frequency of sound, light, or other waves as the source and observer move toward or away from each other.
10. The star system closest to the Solar system.
11. Describes how the universe expanded from a very high-density and high-temperature state.
14. The galaxy that contains our solar system.
15. Disturbances in space-time caused by some of the most violent and energetic processes in the Universe. Predicted by Einstein the in his general theory of relativity.
17. A system of stars, stellar remnants, interstellar gas, dust, and dark matter. Bounded gravitationally.
19. A form of radio receiver used in astronomy, receiving radio waves emitted by radio sources.
20. The person who developed the theory of relativity.

1. High-energy radiation, mainly originating outside the Solar System and even from distant galaxies. The effect of it on humans is still unknown.
2. How the early cosmic mist was broke by the other galaxies.
3. A large radio telescope project and was planned to be built in Australia and South Africa.
4. The nearest major galaxy to the Milky Way.
5. A vector field that describes the magnetic influence of electrical currents and magnetized materials.
7. A form of matter that account for 85% of the matter in the universe.
9. The study of how the universe is formed from a homogeneous beginning, and how the first galaxy structure is formed.
12. A theoretical framework which considers particles are replaced by one dimensional strings.
13. The most abundant material in the universe.
16. An electromagnetic radiation with wavelengths in the spectrum longer than infrared light.
18. A region of space having a gravitational field so intense that no matter or radiation can escape.