For more than half a century, spaceflight has meant towering chemical rockets, disposable stages and cramped capsules perched on top. The approach has worked spectacularly for reaching orbit and the ...

Elon Musk says his obsession with the red planet is cooling.

Deep space travel sounds incredible, but there’s a major problem—distance, radiation, and survival challenges make it nearly impossible. Can we overcome these obstacles and reach the stars?

They say travel broadens your mind but, if you’re travelling into space, it could displace your brain. Results of new study add to a growing body of evidence that astronauts’ brains change position ...