HOUSTON, Texas -- NASA astronaut Mark Vande Hei broke an American record for spending the most time in space, but there is much discussion in his first news conference back on Earth that focused on ...
According to Einstein’s theory of relativity, time passes more slowly in space. As a result, astronauts would experience a delay in aging. However, scientists found that space travel may have the ...
Space is packed with hazards and health risks, and researchers have spent decades discovering what space travel does to the human body (answer: nothing good). But a new study suggests that the effects ...
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