light

Astronomers have created a colorful interactive map of more than 200,000 galaxies and quasars spanning the lifespan of the cosmos.

An astronaut onboard the ISS recently captured a peculiar image of Earth with two unrelated blue blobs of light shining in the planet's atmosphere.

The planet might once have been dominated by microbes that used a molecule other than chlorophyll to harness Sun’s rays.

Scientists have taken another step toward the goal of rendering objects invisible using high-tech cloaks that redirect light.

An astronomer uses gamma ray bursts to shine a light on outer space.

A new image using data collected by NASA's James Webb Space Telescope shows off one of the most perfect "Einstein rings" ever captured.

Enigmatic STEVE is somewhat like an aurora...and somewhat different.

Ultra-fast, ultra-bright sprites caught forming in the act.

Stars appear to twinkle because the light from these distant objects passes through wobbly air in the atmosphere.