For decades, the search for alien intelligence has revolved around the question: if someone out there is listening, how could they hear us? A new study combining data from Penn State and NASA’s Jet ...

The first of these was the loss of space shuttle Columbia in February, the second fatal shuttle accident, which signaled that ...

Magnets could make bulky centrifuges obsolete in space oxygen systems. Scientists have developed a more efficient way to generate oxygen for astronauts that could help with future missions into deep ...