Elon Musk: Humans must be 'interplanetary' before sun engulfs earth

SpaceX CEO Elon Musk said the sun will eventually expand and engulf the Earth, but he says if we are to survive humanity must become a interplanetary species in a space fairing civilization. https://www.dailymail.co.uk/sciencetech/article-8782693/Elon-Musk-says-humans-interplanetary-species-sun-engulfed-earth.html?ns_mchannel=rss&ns_campaign=1490&ito=1490