The most precise clocks in the world will lose only one second every 300 billion years—and someday they might fit in your ...

But there is a move to replace that definition using optical clocks that are 100 times more accurate than a standard atomic clock. In recent news, the Boulder Atomic Clock Optical Network ...

resembling a pendulum swinging back and forth through space. The galaxy, called IC 1954, is located approximately 45 million light-years from Earth in the constellation Horologium, The Clock.

But there is a move to replace that definition using optical clocks that are 100 times more accurate than a standard atomic clock. In recent news, the Boulder Atomic Clock Optical Network ...

Space telescopes are prominent uses of optical technologies. Launched in 1990, the Hubble Space Telescope is renowned for its ...

There is a clock called the "optical lattice clock." First, each atom cooled by laser is captured in a 3-D micro space (optical lattice), which is created by interference of laser beams with special ...

In space exploration, long-distance optical links can now be used to transmit images, films and data from space probes to ...

Four-wave mixing A weak optical signal (red) from a spacecraft transmitter can be amplified noise-free when it encounters two pump waves (blue and green) in a receiver on Earth. (Courtesy: Chalmers ...