NASA: Living and Working in Space: Radiation

“Living and working in space requires human perseverance. Future missions will focus on exploration at greater distances from Earth; to the Moon and then to Mars. These missions will mean humans will stay in space for extended durations. To ensure that these goals are achieved, NASA’s astronauts must be able to perform at peak productivity under even the most daunting conditions. Our research and science enables human spaceflight exploration to expand the frontiers of knowledge, capability, and opportunity in space.”

Electric scooters may not be around for long… | The Verge

“Electric scooters have been one of the biggest tech crazes of the last year, with venture capitalists pouring more than $1 billion into the startups. But the fundamental numbers don’t add up because the scooters don’t bring in enough money to cover their costs. If the business continues on its current path, the scooter hype might be short-lived. “