It's so simple, we create a giant transparent sphere made out of either extremely reinforced glass or plastic and surround it around a planet. What this does is it gives us the ability to create an atmosphere and even control the temperature and weather on a planet and make it suitable for life.
This is a billion-trillion dollar project BUT it will create a million jobs and help boost the economy and let us terraform planets.
YOU'RE WELCOME SCIENTIST.
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You're a genius.