Universe

2. hole a place in space where gravity pulls so much that even light can not get out
4. cosmic snowballs of frozen gases, rock, and dust that orbit the Sun
6. An exoplanet is any planet beyond our solar system.
9. is the result of eruption of a very old dying star
10. a small rocky body orbiting the sun
11. a huge collection of gas, dust, and billions of stars and their solar systems
12. a region at the centre of a galaxy that produces an extremely large amount of radiation.
14. matter Something that is composed of particles that do not absorb, reflect, or emit light
15. a powerful and luminous explosion of a star.
17. dwarf They are stars that have used up all their hydrogen that they used for fuel
18. rotating neutron stars observed to have pulses of radiation
19. giant a large planet mostly composed of helium and/or hydrogen.
20. Way is our huge collection of stars, dust and gas.
21. a small body of matter from outer space that enters the earth's atmosphere

1. a group of stars that make an imaginary shape in the night sky
3. matter consisting of elementary particles which are the antiparticles of those making up normal matter
5. an enormous cloud of dust and gas occupying the space between stars
7. system the sun together with the group of planets that are held by its attraction and revolve around it
8. Bang It is the idea that the universe began as just a single point,
13. a natural luminous body visible in the sky especially at night
14. planet a celestial body resembling a small planet but lacking certain technical criteria that are required for it to be classed as such.
16. satellite Something like the moon, an object that moves around the earth
18. a large mass that move around a star
20. Earth's only natural satellite