Their invention, the pineal gland simulator and regulator — or “Pinacal” — simulates the effects of sunset and sunrise in order to stimulate hormones, which in turn causes astronauts to experience a ...
NASA's two stuck astronauts are taking their first spacewalk together, exiting the International Space Station almost eight ...
Suni Williams surpasses the most time by a woman on EVA during a spacewalk with Butch Wilmore outside the International Space ...
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