The most accurate clock in space launches within days and will begin ... with unprecedented accuracy and then transmit it via laser to nine ground stations as it passes overhead at 27,000 ...

So you can turn a laser beam with a known, fixed frequency into a clock by counting its waves to determine time’s passage. The best way scientists have found to do this is to excite an atom by ...

making meteors a suitable source of material for future manufacturing in space. This study uses the laser ultrasound technique spatially resolved acoustic spectroscopy (SRAS++), which was invented ...

Its main mission was to test laser communications technologies that could be applied in space exploration in the future. The hardware, which is the size of a tissue box, was installed in a ...

WASHINGTON — The Space Systems Command (SSC) announced it has awarded contracts to four companies to develop prototypes for laser communication terminals, kicking off the first phase of a $100 ...

This won’t be U.S. Marines armed with laser weapons and transported via space ship a la “Moonraker,” but a broad array of terrestrial and orbital weapons are being eyed. Nicholas Slayton is ...

A nuclear clock is a novel type of timekeeping device that uses signals from the core, or nucleus, of an atom. The team used a specially designed ultraviolet laser to precisely measure the ...

The Atomic Clock Ensemble in Space (ACES) is a European Space Agency (ESA) mission that will generate a time signal with unprecedented accuracy and then transmit it via laser to nine ground ...