Chinese scientists create clock so precise it could redefine second - Optical clock measures time using light emitted by ...
Scientists are exploring a new type of optical atomic clock based on ytterbium-173 ions that could help define the future ...
(CNN) — Picture a clock ticking so steadily that it doesn’t lose a second, even after running for 1 billion years. Scientists are now closer than ever to realizing that level of timekeeping precision, ...
Rydberg atoms are atoms with one or more outer electrons excited to very high energy levels, which interact very strongly ...
A spacecraft traveling at 99 percent the speed of light toward Alpha Centauri would cross 4.3 light-years in what feels like ...
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Picture a clock ...