Astronomers measured a faint excess in the cosmic infrared background that hints at early star formation.

To estimate the history of star formation, researchers model how the extragalactic background light, the total accumulated radiation from star formation processes plus a contribution from active galactic nuclei (AGNs), absorbs and redistributes starlight over cosmic time.

Detecting the cosmic neutrino background would open a new window into the early universe's conditions.

The astronomer carefully measured the cosmic background radiation to trace the universe's earliest fluctuations.

Detecting the cosmic gravitational-wave background would offer unprecedented insight into the universe's birth.

Researchers are developing detectors sensitive enough to measure the cosmic gravitational wave background predicted by inflationary models.

The mural's subtle, backgroundy tones made the café feel cozy without drawing attention.