Cosmic dawn – signal left by the ‘switching on’ of the first stars in the universe detected

Big bang

380,000 years

Cosmic dark

ages

180m years

Cosmic dawn.

First stars

250m years

Black holes and

accretion disks

Reionisation

Modern galaxies

13.8bn years

Now

380,000 years

Cosmic

dark ages

180m years

Cosmic dawn.

First stars

250m years

Black holes and

accretion disks

Reionisation

Modern

galaxies

13.8bn

years

Now

Big bang

Guardian graphic. Source: N R Fuller, National Science Foundation. Research conducted by Judd Bowman of Arizona State University