Add Yahoo as a preferred source to see more of our stories on Google. Jeffrey Hoffman is a professor at the Massachusetts Institute of Technology and a former NASA astronaut. Why are NASA's Artemis ...

Space travel is, of course, an inherently dangerous undertaking. In addition to concerns about equipment malfunctions and the risks of manufacturing an Earth-like environment in the vacuum of space, ...

While the Artemis II astronauts have been protected from the icy vacuum of space on their journey, their bodies have nonetheless been left exposed to possibly high levels of radiation—a danger of ...

Sign up for the Slatest to get the most insightful analysis, criticism, and advice out there, delivered to your inbox daily. I have always loved the idea of going to ...