Stars, Galaxies and the Universe

Edit Answers
123456789101112131415161718
Across
  1. 2. – The stretching of light waves as objects in space move away from Earth, used to measure the universe's expansion.
  2. 8. – A nuclear reaction where two atomic nuclei combine to form a heavier nucleus, releasing energy, as seen in the Sun’s core.
  3. 9. – The visible surface of the Sun, from which most of the Sun’s light and heat is emitted.
  4. 10. – The innermost and hottest layer of a star, where nuclear fusion occurs, producing energy.
  5. 11. – A recognizable pattern of stars within a constellation or made from multiple constellations, such as the Big Dipper (part of Ursa Major).
  6. 14. – A rapidly rotating neutron star that emits beams of radiation, appearing as pulses when viewed from Earth.
  7. 15. – Large, bright loops of plasma that extend from the Sun’s surface, held in place by magnetic fields.
  8. 16. – A thin layer above the Sun’s photosphere, appearing as a reddish glow during solar eclipses.
  9. 17. – The Sun’s outer atmosphere, appearing as a halo of plasma, visible during a total solar eclipse.
  10. 18. – A massive system of stars, gas, dust, and dark matter bound together by gravity, such as the Milky Way.
Down
  1. 1. – A subatomic particle found in an atom’s nucleus with no electric charge, crucial in atomic structure and nuclear reactions.
  2. 3. – Stars or constellations that never set below the horizon and appear to move around a celestial pole, visible all year from certain latitudes.
  3. 4. – A massive, bright star that is much larger than the Sun and in the late stage of its life cycle before becoming a supernova.
  4. 5. – A large body in space that is in the early stages of forming into a planet through the accumulation of dust and gas
  5. 6. – The apparent shift in an object’s position when viewed from different angles, used in astronomy to measure distances to nearby stars.
  6. 7. – An extremely bright and distant celestial object powered by a supermassive black hole at the center of a galaxy.
  7. 12. – A massive explosion that occurs when a supergiant star collapses, releasing immense energy and sometimes forming neutron stars or black holes.
  8. 13. – The shortening of light waves as objects in space move closer to Earth, indicating motion toward an observer.