Tubular laser beams can create what amount to fiber-optic cables made of thin air, researchers report in a study to appear in Physical Review X. Laser-heated air can efficiently transmit light signals ...

Taara started as a Google X moonshot spinoff aimed at connecting rural villages in sub-Saharan Africa with beams of light.

Many of the world’s largest and most devastating earthquakes strike beneath the ocean, where the lack of sensors makes quick warnings difficult. Most monitoring stations are on land. “If we have a big ...