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The solar system
йй Training an astronaut
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aircraft American space Apollo Armstrong asteroid belt astronauts atmosphere axis back to Earth Backpack bluish boiling boosters burn called carry centre clouds comsats cosmonauts crater eleven equipment Everything fall to Earth fire flare flew floats freezing fuel tank furthest galaxy giant glowing gravity gunpowder hit Earth's surface huge human inner planets Jets of gas Jupiter land layer of gases lift-off light live look lunar module main engines Man-made Mercury meteorites Meteors millions of stars Moon Moon's Neptune object in space object that orbits orbit round orbiting the Sun orbits Earth oxygen patches Pioneer Pluto robot rock and ice rock or metal rocket Russia launched Russian satellite Saturn scientists sent small step solar system solid Sometimes space dust Space probes space shuttle space stations Space walking spacecraft speed spin stay suit Sun's surface sunlight temperature travels Uranus Venus and Mars Vostok weather