The best atomic alarm clocks are synchronized to the NIST station in Colorado ... This large atomic alarm clock can either be set on a tabletop or hung on your wall with the included mount.

Whether you find yourself glancing at a clock on the wall or checking your phone ... In the U.S., a new atomic clock called NIST-F4 has already proven to be one of the most precise timekeepers ...

A new atomic clock is due for installation on the International Space Station in 2016 ... He has written for the Wall Street Journal, NASA, the World Science Festival, Space.com, EARTH, Discover ...