NASA has a bold new plan to return to the moon with its Artemis program. One of its most important components will be the innovative but controversial lunar Gateway.
The Gateway will be a small spaceship in orbit around the moon that will serve as a waystation for humans on their way to the lunar surface and beyond—a sort of temporary home and office for astronauts.
In essence, it will be a smaller version of the International Space Station much farther away from Earth. It will be about …

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