To peer into the heart of the sun, a 13.7-meter-wide stainless steel shell lined with over 2,200 light-gathering sensors hides deep under a mountain in central Italy. Known as the Borexino experiment, it watches for flashes of light from neutrinos, ghostly subatomic particles shot out of the sun’s

These images of a cardboard cutout of a cat were made with light that never touched the object. The technique works a bit like holography, in which a light beam that shines through an object overlaps and interferes with an identical one that passes by it, and that interference is used to encode a

Scientists have long believed that the power of the sun comes largely from the fusion of protons into helium, but now they can finally prove it. An international team of researchers using a detector buried deep below the mountains of central Italy has detected neutrinos—ghostly particles that

Five years ago, scientists reported that raindrops, especially small ones, often fall through the air much faster than they should. Some researchers have suggested that these “super-terminal” raindrops (ones traveling more than 30% faster than their terminal velocity, at which air resistance

On Thursday, physicists in China reported the latest result in the search for particles of dark matter, the mysterious stuff whose gravity holds the galaxies together. Researchers with the Particle and Astrophysical Xenon (PandaX) detector spotted no sign of their quarry, which isn't surprising