Leo P, a tiny galaxy, stopped making stars after the universe’s reionization. Unlike most galaxies, it restarted billions of ...

Astronomers compile a large sample of an unusual class of objects in an effort to connect the dots to the early universe.

The early universe experienced a phase of rapid expansion, known as inflation. For decades, cosmologists assumed that this ...

Genesis data is now producing high impact science in cosmochemistry, solar physics, coronal mass ejections, and space ...

A new study suggests that the cosmic web could have formed without relying on inflation driven by a scalar field. Instead, it ...

The Universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous -- and highly debated -- results had shown: The Universe is expanding faster than predicted by ...