Ключевые слова: adventure, alien, alone, astronaut, atmosphere, cosmic energy, cosmonaut, dead, discovery, earth, energy, environmental, exploration, extraterrestrial, first, galaxy, garbage, global warming, gravity, home, interstellar, leaving, life, livable, looking for, lost, man, mars, mission, moon, nature, new, oxygen, people, planet, pluto planet, pollution, saturn planet, scan, science, scifi, shuttle, space, space colony, suit, sun, sustainable, travel, usa, venus,