There is no plan for a manned expedition to Mars, beyond "hey, let's go to Mars"...

		idlewords on June 3, 2019 \| parent \| context \| favorite \| on: Visit to the World's Fair of 2014 (1964) There is no plan for a manned expedition to Mars, beyond "hey, let's go to Mars". Foundational breakthroughs in closed-loop life support need to happen to make such a trip possible (leaving aside the many other problems).