As we're learning about farming in space, one issue is how to check on the farms when humans aren't present. So: Ying Diao and Andrew Leakey.
The breakthrough here is a new sensor, with transmission; from the world of wearable electronics.
Near-term, we can have a satellite space-farm without humans at all. This would tell us how plants grow in space, before any humans have to rely upon them. Longer-term, these sensors should increase the ratio of plants-per-farmer. Every gram counts.
Right now it's corn but later this is needed for kale and other vegetable "superfoods" which astronauts might want to eat.
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