Exploiting the many resources of our solar system may enable humanity to venture beyond its confines for the first time, and blaze a trail to other stars.
Exploiting the many resources of our solar system may enable humanity to venture beyond its confines for the first time, and blaze a trail to other stars.
Building a spaceship that can travel to other star systems on human timescales — over the course of mere decades — will be a challenging and expensive proposition, with costs likely running into the hundreds of billions of dollars. But the economic and technological hurdles won't be so steep if our species has begun tapping the vast riches locked up in asteroids and other bodies beyond Earth orbit, advocates say
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