growing vegetables in greenhouses

While we hope to one day be able to settle on other planets, astronauts always need more nutrients than instant foods packed and brought from Earth.

In Blade Runner 2049's opening scene, we see a series of close-up greenhouses, stretching to the endless horizon.

Compared to farms that operate in the old way, which depends on the land and sunshine, high-tech farms produce 100 times more, using only 5% of normal water.