Into the Universe

Edit Answers
123456789101112131415161718192021222324
Across
  1. 6. A massive, distant incandescent entity like the sun that is a fixed point of light in the night sky.
  2. 7. A celestial body that orbits a star in an elliptical pattern.
  3. 10. Object that generates periodic pulses of radio waves and other electromagnetic radiation at speeds of up to a thousand pulses per second
  4. 11. made up of particles that do not absorb, reflect, or emit light
  5. 12. The universe's fast expansion of matter from a condition of extraordinarily high-density
  6. 14. Any planet outside of our solar system is an?
  7. 17. A celestial body with an ice and dust core and, when it is close to the sun
  8. 20. what is the Moon to us
  9. 22. A star that increases in brightness dramatically and then gradually dims over the course of several months.
  10. 23. An enormous astronomical object that is really far away, emits a tremendous quantity of energy, and often appears as a star in a telescope.
  11. 24. The earth's natural satellite, which may be seen by reflecting sunlight at night.
Down
  1. 1. A tiny, very dense star, usually the size of a planet. When a low-mass star has used up all of its nuclear fuel in the centre and lost its outer layers as a planetary nebula, a white dwarf is created.
  2. 2. Tiny planetary-mass object that orbits the Sun directly
  3. 3. A tiny, stony object is circling the sun.
  4. 4. A cluster of stars that has a recognised pattern and is often called after it or associated with a legendary character.
  5. 5. A star that unexpectedly becomes much brighter due to a cataclysmic explosion that expels the majority of its mass.
  6. 8. A big, relatively low-density planet like Jupiter, Saturn, Uranus, or Neptune mostly made of hydrogen and helium.
  7. 9. A tiny space object that penetrates the atmosphere of the planet and ignites due to friction, giving the appearance of a light streak.
  8. 13. A region of space where the gravitational force is so strong that nothing can escape.
  9. 15. A wide band of light visible in the night sky that results from the illumination of a great number of dim stars
  10. 16. A cloud of gas and dust in space that may be seen in the night sky as a dimly lit patch or as a black shadow next to other light objects.
  11. 18. A material composed of antiparticles.
  12. 19. A system of gas and dust, together with millions or billions of stars, kept together by gravitational pull.
  13. 21. Contains 8 Planets