Cosmology · Explainer
Light carries the history of the universe.
From the stars next door to distant galaxies, every observation begins with a journey through time.
Branches of physics
Cosmology & Astronomy
The universe, from its beginnings to its largest structures.
Cosmology · Research brief
Euclid finds quasars from the universe’s first billion years.
A larger sample of ancient quasars gives astronomers new evidence about the early growth of supermassive black holes.