Add Yahoo as a preferred source to see more of our stories on Google. For millions of years following the Big Bang, after the universe’s roiling soup of particles had cooled, the cosmos was a dark and ...

Astronomers tallying up all the normal matter—stars, galaxies and gas—in the universe today have come up embarrassingly short of the total matter produced in the Big Bang 13.6 billion years ago. In ...

Add Yahoo as a preferred source to see more of our stories on Google. Half The Universe's Matter Was Missing. Astronomers Just Found It. A new analysis of the sky has finally confirmed where the ...

Astrophotographer Miguel Claro captured a stunning view of the Lion Nebula in the Cepehus constellation, revealing colorful clouds of ionized hydrogen gas. When you purchase through links on our site, ...

For millions of years following the Big Bang, after the universe’s roiling soup of particles had cooled, the cosmos was a dark and boring place. There were no stars to make light. No familiar swirls ...