When sunlight hits clouds or other atmospheric particles, it scatters and becomes diffuse light. Unlike direct sunlight, ...

When millions of people turn off their lights for Earth Hour each year, something remarkable happens in the night sky above ...

What if the most telling indications of an impending volcanic eruption are buried deep under the ocean, or in a fleeting succession of tiny quakes that no one perceives? As volcanoes of the Pacific ...

Researchers have cracked a fundamental optical challenge: how to control both angle and wavelength of light independently—a ...

Light travels in straight lines, so it cannot bend around your body to light up the blocked parts of the surface. Outdoor shadows change because the earth is always moving. It happens naturally every ...

The mighty James Webb and Hubble space telescopes united to reveal stars being born inside the Small Magellanic Cloud, which ...