Space Time

50 years after the first moon landing, humans are trying to reach the lunar surface again. They’ll stay longer if astronauts can find and mine water.

Photo: Hartmuth Kintzel/500px/Getty Images

Space Time

Tech titans like Jeff Bezos and Elon Musk want human beings to move off-planet, but reproducing away from Earth could be incredibly difficult

Credit: World Perspectives/Getty Images

Space Time

Space is far from silent, and we can learn a lot if we know how to listen

Photo: NASA/JPL-Caltech

Space Time

A new study of astronaut twins — one who spent a record time in orbit, the other who stayed on Earth — offers a clearer understanding of how space travel affects the human body

Photo: Bill Ingalls/NASA/Getty

Space Time

Former astronaut Mark Kelly is running for Senate. He may join a small club of astronaut politicians.

Credit: NASA/Getty Images

Shannon Stirone

Freelance writer in the Bay Area

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