However, although photons of light existed since the first second after the Big Bang, they could not yet shine across the ...

New research calculates extragalactic background light over the universe's lifetime, shedding light on star-formation rates.

The first publicly released image from the James Webb Space Telescope, showing countless galaxies and multiple arcs where the combined gravity of those galaxies magnifies light from background ...

It's in the background, look closely. But there's plenty more light than starlight in the heavens. There are nebulae, and giant molecular clouds, and supernovae, and pulsars, and active galactic ...

You can look well out of the ecliptic plane, where the zodiacal light is dimmest; even so, the “background brightness” of the sky from this light is a factor of about 15 brighter than all the ...

Astronomers searched through 200,000 images and made tens of thousands of measurements from Hubble Space Telescope to discover a residual background glow in the sky. ARTWORK: NASA, ESA, Andi James ...

Space appears black due to the absence of a medium to scatter light and the vast distances between stars. Despite the ...

PUNCH sees first light, prepares to study how the Sun creates our space weather The constellation of four satellites can take both narrow- and wide-field images of the Sun to study its corona and ...

Once the team measured the level of light in the sky background, they then had to resort to mathematical models of how many faint galaxies were lurking under the normal limits of detection.

Scientists have discovered a mysterious pulsating light—and they don’t know what it could be. It pulses at a rate of about once every 21 minutes, and has been doing so since at least 1988.