atomic clock

Explainer: What Is an Atomic Clock?

Explainer: What Is an Atomic Clock?

The clock is ticking: A technology demonstration that could transform the way humans explore space is nearing its target launch date of June 24, 2019. Developed by NASA's Jet Propulsion Laboratory in Pasadena, California, the Deep Space Atomic Clock is a serious upgrade to the satellite-based atomic clocks that, for example, enable the GPS on your phone.

A New Atomic Clock has been Built that Would be off by Less than a Second Since the Big Bang

A New Atomic Clock has been Built that Would be off by Less than a Second Since the Big Bang

Physicists have developed an atomic clock so accurate that it would be off by less than a single second in 14 billion years. That kind of accuracy and precision makes it more than just a timepiece. It’s a powerful scientific instrument that could measure gravitational waves, take the measure of the Earth’s gravitational shape, and maybe even detect dark matter. How did they do it?