We are the Universe trying to understand itself. How, and why, did we come to be? Why does the Universe take the shape it does? To understand our place in the cosmos, we look to what has gone before.

The agreement between the predicted primordial element abundances and astrophysical observations represents a triumph of the Standard Model of Cosmology and a key test of scenarios beyond. In addition ...

The discovery that helium and iron can mix at the temperatures and pressures found at the center of Earth could settle a long-standing debate over how our planet formed. Primordial helium from the ...

University of Arizona astronomers have learned more about a surprisingly mature galaxy that existed when the universe was just less than 300 million years old—just 2% of its current age.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. In the 1931 movie ...

James Webb Space Telescope reveals unexpected complex chemistry in primordial galaxy Date: March 10, 2025 Source: University of Arizona Summary: Astronomers have peered back to a time when the ...

Vivian Poulin asks if the tension between a direct measurement of the Hubble constant and constraints from the early universe ...