There are no significant hydrogen deposits. Otherwise, we would have long discovered at least some of them. Another possibility worth investigating is direct e

There are no significant hydrogen deposits. Otherwise, we would have long discovered at least some of them. Another possibility worth investigating is direct electricity-driven synthesis: https://www.newscientist.com/article/dn25894-meet-the-electric-life-forms-that-live-on-pure-energy/ https://www.newscientist.com/article/dn25894-meet-the-electr...