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Across
  1. 3. Hypothesis suggesting that life exists throughout the universe, distributed by space dust, meteoroids, or other mechanisms.
  2. 4. Surname of the astrophysicist who developed the limit for white dwarf stars, winning the Nobel Prize in 1983
  3. 8. Electromagnetic radiation emitted when charged particles are accelerated radially.( measured with this device)
  4. 10. An extremely energetic supernova explosion."
  5. 11. The physical process responsible for the imbalance between matter and antimatter in the universe.
  6. 13. Property of being identical in all directions, crucial in cosmological models describing the universe.
  7. 14. The apparent path of the Sun across the sky over the course of a year.
  8. 15. Hypothetical elementary particle that mediates the force of gravity in quantum field theory.
Down
  1. 1. The effect observed when the frequency of light or sound changes due to the motion of the source or observer.
  2. 2. The process of creating new atomic nuclei from pre-existing nucleons.
  3. 5. Alignment of three celestial bodies in a straight line, often occurring during eclipses.
  4. 6. A prominent red supergiant star in the constellation Orion, known for its variable brightness and eventual fate as a supernova
  5. 7. Technique of combining light from multiple telescopes to achieve higher resolution observations.
  6. 9. The effect where the position of an object appears different when viewed from different angles, used to measure stellar distances
  7. 12. The angle between an object's rotational axis and its orbital axis, affecting its seasons.