As space agencies prepare for human missions to the moon and Mars, scientists need to understand how the absence of gravity ...

As space agencies prepare for human missions to the Moon and Mars, scientists need to understand how the absence of gravity affects living cells. Now, a team of researchers has built a rugged, ...

Naps aren’t only for toddlers. Approximately 1 in 3 American adults nap, according to the Pew Research Center. Naps come in all shapes and sizes. “Some people take restorative daytime naps in order to ...