A research team including a UC Riverside astrophysicist and his former graduate student has received the 2025 Buchalter Cosmology Prize for a study that offers new insight into one of the universe’s ...

Cosmic reionization is a significant phase in the history of the universe, marking the transition of hydrogen from a neutral to an ionized state. This process is believed to have occurred between ...

For hundreds of a millions of years, the universe existed in the dark ages—an epoch when only primordial gasses existed. Then, a period of reionization, cleared away this foggy existence an introduced ...

A recent study, utilizing James Webb Space Telescope (JWST) data, suggests the Epoch of Reionization concluded approximately 650 million years after the Big Bang, a timeframe notably earlier than ...

A team of astronomers has used the Atacama Large Millimeter/submillimeter Array (ALMA) to detect glowing oxygen in a distant galaxy seen just 700 million years after the Big Bang. This is the most ...

Cosmic reionization denotes the transformative epoch when the first luminous sources emerged, ending the cosmic dark ages by ionising the pervasive neutral hydrogen. This period, which encompasses ...