Astronomers map the coldest known region of the early universe

Daniel Cho
5 min read
A cold spot in ancient light is helping test how the first galaxies formed.
Astronomers have mapped an unusually cold region in the light left over from the early universe. The cold spot helps test theories about how the first galaxies came together.
What happened
The new map is the most precise yet and combines data from several telescopes.
Why it matters
More observations are planned for next year.
Key facts
Astronomers have mapped an unusually cold region in the light left over from the early universe.
The new map is the most precise yet and combines data from several telescopes.
Science
Science, 2026
18,900
5 min read




