Making Better Measurements of the Composition of Galaxies

A study using data from telescopes on Earth and in the sky resolves a problem plaguing astronomers working in the infrared and could help make better observations of the composition of the universe with the James Webb Space Telescope and other instruments. The work is published April 20 in Nature Astronomy. 

Glimpses of an Ancient Cosmos: What Are Gravitational Lenses?

To glimpse the earliest days of the cosmos, astronomers like UC Davis Associate Professor Tucker Jones rely not only on the magnification of telescopes, but also on powerful natural magnification from our cosmic neighbors in the form of gravitational lenses. For Jones, identifying these gravitational lenses is a first step to understanding the origin of the cosmos.