The next gold rush will be intergalactic.
In 2009, a collection of astronauts, academics, and aerospace industrialists convened to review NASA's present and future plans for manned space flight. Informally dubbed the "Augustine Commission," the more-stuffily named Review of United States Human Space Flight Plans Committee determined that our ultimate goal ought to be nothing less than "to chart a path for human expansion into the solar system."
Considering that Earth's resources are finite and that the well of human desire knows no bottom, a continued future for our species will likely require robust manned spaceflight to leave the planet. But it remains incredibly expensive and logistically complex to see humans break the planet's escape velocity, let alone with any regularity. The ostensibly modern spacecraft of today carry all their fuel with them from the start — a lot of that fuel is required simply to transport other fuel. It's comically inconvenient.
Contemporary spaceflight is impractical by virtue of being unsustainable; it's a pursuit for governmental agencies and rich visionaries. Now an industry with its roots in prehistory is changing that tune, summoning up a modern set of incentives for people to get more intimate with outer space. "Space mining" presents itself as a killer technology for interstellar travel and exploration — the miners are due to inherit the stars as we set their sights beyond our planet to harvest geological resources from the universe itself.
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The minerals we pull out of the the ground — whether they're worth money or are useful for some process — have the same composition as the minerals that comprise planets and asteroids. So what good are those minerals doing us out there? A website called Asterank charts the economic feasibility of mining some 600,000 different asteroids for their resources — one 90-foot-wide platinum asteroid is worth a respectable $50 billion on Earth. The incentive is undeniable.
More than turning asteroids into money, however, today's space mining entrepreneurs are intent on turning asteroids into figurative gas stations. The ubiquitous space rocks are commonly home to water ice — or hydrogen and oxygen, the building blocks of rocket fuel.
Deltion Innovations is a Canadian company developing hardcore robotic drills and excavation systems to sell to others for use in outer space. Once a mining operation has successfully harvested ice, CEO Dale Boucher says, "We can break that water ice into its hydrogen and oxygen components by putting a DC voltage into it. This breaks the bonds of water apart, with the hydrogen going to one electrode and the oxygen going to another. This is called electrolysis, and we can use it in space to make fuel."
In its perfect, refined form to come, space mining stands to radically normalize the notion of interstellar travel. With an easily refilled gas tank, future spacecraft will be free of the usual time and planning restrictions. Suddenly the whole galaxy is the scenic route.