What’s the Best Ways for Humans to Explore Space?
Should we leave space exploration to robots — or prioritize human spaceflight, making us a multiplanetary species?

Harvard professor Robin Wordsworth, who’s researched the evolution and habitability of terrestrial-type planets, shares his thoughts:

In space, as on Earth, industrial structures degrade with time, and a truly sustainable life support system must have the capa … ⌘ Read more