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SETI / Space telescopes / Infrared telescopes / Freeman Dyson / Megastructures / Dyson sphere / Spitzer Space Telescope / Star / Infrared / Spacecraft / Spaceflight / Space technology
SETI
Space telescopes
Infrared telescopes
Freeman Dyson
Megastructures
Dyson sphere
Spitzer Space Telescope
Star
Infrared
Spacecraft
Spaceflight
Space technology

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