Farming on Mars: NASA Ponders Food Supply for 2030s Mission

The first humans to live on Mars might not identify as astronauts, but farmers. To establish a sustainable settlement on Earth's solar system neighbor, space travelers will have to learn how to grow food on Mars — a job that could turn out to be one of the most vital, challenging and labor-intensive tasks at hand, experts say.

"One of the things that every gardener on the planet will know is