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Rockets need lots of fuel to blast up into space.

Rockets need lots of fuel to blast up into space.

It takes a huge push to leave the ground and reach space. Rockets burn fuel to make big flames that shoot them upward.

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Astronauts float around inside their spaceship. Astronauts float around inside their spaceship. Space is completely silent because there is no air to carry sound. Space is completely silent because there is no air to carry sound. Astronauts wear special suits so they can breathe in space. Astronauts wear special suits so they can breathe in space. Footprints left on the Moon can stay for millions of years. Footprints left on the Moon can stay for millions of years. The Space Station is a home in space that circles Earth. The Space Station is a home in space that circles Earth.