Humans could become a truly interplanetary species within 200 years, physicists claim
Our species faces a pivotal moment in human history. Either we develop the technology to safely harness the energy needed to escape our planet, or we kill ourselves in some great cataclysm, a stark new study claims. But, the new paper argues, if we can achieve the former and avoid the latter, then we might just become a truly interplanetary species in as little as 200 years.
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