Uzupełnij tekst słowami związanymi z przestrzenią kosmiczną.

A solar system is made up of all the planets that go round a sun.
The Earth goes round the Sun. It is the third p_ _ _ _ _ from the Sun. You can see the M _ _ _ from the Earth. It takes about 28 days to go round the Earth.
A galaxy is a big group of s _ _ _ _. Some galaxies contain billions of them!
The u _ _ _ _ _ _ _ is everything that exists. It contains many galaxies.
A _ _ _ _ _ _ _ _ _ are people who travel in space in a space shuttle or in a rocket.
A _ _ _ _ _ _ _ _ _ _ study space and all the things in space. They use t _ _ _ _ _ _ _ _ _ to see things that are a long distance away.
A s _ _ _ _ _ _ _ star is not really a star! It is a meteor that burns when it enters the Earth’s atmosphere.
S _ _ _ _ _ _ _ _ _ are objects that people send into space. They go round the Earth. There are also natural satellites. For example, the Moon is a satellite.