Universe
Across
- 6. a natural luminous body visible in the sky especially at night
- 7. a large mass that move around a star
- 10. rotating neutron stars observed to have pulses of radiation
- 11. Something that is composed of particles that do not absorb, reflect, or emit light
- 12. It is the idea that the universe began as just a single point,
- 14. An exoplanet is any planet beyond our solar system.
- 17. cosmic snowballs of frozen gases, rock, and dust that orbit the Sun
- 20. Something like the moon, an object that moves around the earth
- 22. is the result of eruption of a very old dying star
- 23. a region at the centre of a galaxy that produces an extremely large amount of radiation.
- 24. Earth's only natural satellite
Down
- 1. They are stars that have used up all their hydrogen that they used for fuel
- 2. a celestial body resembling a small planet but lacking certain technical criteria that are required for it to be classed as such.
- 3. a small rocky body orbiting the sun
- 4. a group of stars that make an imaginary shape in the night sky
- 5. a powerful and luminous explosion of a star.
- 8. a large planet mostly composed of helium and/or hydrogen.
- 9. a small body of matter from outer space that enters the earth's atmosphere
- 13. a place in space where gravity pulls so much that even light can not get out
- 15. is our huge collection of stars, dust and gas.
- 16. an enormous cloud of dust and gas occupying the space between stars
- 18. matter consisting of elementary particles which are the antiparticles of those making up normal matter
- 19. a huge collection of gas, dust, and billions of stars and their solar systems
- 21. the sun together with the group of planets that are held by its attraction and revolve around it