Universe - Everything that exists — all space, time, matter, and energy., Galaxy - A massive system of stars, gas, and dust held together by gravity., Habitable - Suitable for life to survive and grow., Civilization - A group of advanced beings or societies., Expansion - The process of getting larger or spreading out., Energy - The power used to make things work or move., Paradox - A statement or situation that seems to contradict itself., Telescope - An instrument used to observe distant objects in space., Planet - A large body that orbits a star., Filter - A barrier or challenge that life must overcome.,

Aliens

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