A six-month stay on the International Space Station can be a pain in the back for astronauts. While they may gain up to 2 inches in height temporarily, that effect is accompanied by a weakening of the muscles supporting the spine, according to a new study.
Thinking about treating your family to a little virtual reality this holiday? Have no idea where to start? Don't worry. From Google's inexpensive Cardboard VR viewer to Sony's new PlayStation VR, this guide will help you figure out what makes sense for your family's interests, needs and budget.