Check out these 8 images of galaxies, star clusters, supernovas and others captured by NASA James Webb Space Telescope in ...

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 ...

Hurricane Helene sent gravity waves rippling through the atmosphere far above the southeastern United States, new NASA images ...