Simulations Explain Abundance of Bright Galaxies Observed at Cosmic Dawn

When researchers glimpsed the first images and data from the James Webb Space Telescope, humanity’s largest and most powerful space telescope, they noticed something peculiar. A large number of bright galaxies deep in the universe formed during a period called “Cosmic Dawn,” when the first stars and galaxies formed within 500 million years after the Big Bang. New research published in The Astrophysical Journal Letters shows that a theoretical model produced roughly five years ago predicted these very observations and credits them to bursty star formation.

Simulations Reveal Signs of Galaxy Mergers in Milky Way Disk

Some of the Milky Way’s oldest stars have been spotted in a surprising place — the disk that is our galaxy’s youngest region. Supercomputer simulations of their orbits suggest these metal-poor stars came from a smaller galaxy that slammed into the Milky Way more than 7 billion years ago.

Hellman Fellowships Give Early-Career Faculty a Research Boost

Seven assistant professors in the College of Letters and Science have been named to UC Davis’ newest class of Hellman Fellows. The Hellman Fellows Fund provides grants to more than 100 junior faculty members annually at all 10 UCs and four private institutions. The fellowships of up to $50,000 are intended to give early-career faculty extra support for their research.