Earth once had a ring of copper, and bits of it are still there.
When it comes to imagining new technology, the sky is the limit. No point in letting your scheme get bogged down by reality when you’re just brainstorming. But sometimes, ideas that really shouldn’t make it out of the brainstorming session escape into the real world. Or worse — into low-Earth orbit. This is the story of how the U.S. once launched millions of copper needles into space on purpose.
BERLIN (AP) — Scientists in Antarctica have harvested their first crop of vegetables grown without earth, daylight or pesticides as part of a project designed to help astronauts cultivate fresh food on other planets.