Conversation

The Polaris Dawn mission this week will send four civilian astronauts into space — where fewer than 700 people have been since 1961. Private space companies such as SpaceX and Blue Origin hope to boost that number to many thousands, and SpaceX is already taking bookings for flights to Earth orbit. But space is an unnatural environment for humans, and the mission is rife with danger. For @ScienceAlert, an astronomer assesses the risks and rewards of leaving Earth. https://flip.it/J-IvPP
#Science #Space #SpaceExploration #PolarisDawn #SpaceX #BlueOrigin