Last week, Stephen Hawking again argued colonizimg space is essential for the long term survival of humanity-- and the not so long term. He said that unless we move into space, humanity will not last another thousand years.
Climate collapse, war, and asteroid strikes are among the risks to survival as long as humans confine ourselves to Earth. We need to put our eggs in more than one basket, Hawking and others contend, first on other worlds, and eventually around other stars.
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