Welcome! I am a Hubble Fellow at Carnegie Observatories. I use Near Field Cosmology to study the first stars and galaxies.

My favorite galaxy is Reticulum II.

Nature paper

News article by Carnegie Science

Short Interview with MIT

The nine brightest stars in the r-process galaxy Reticulum II are circled. Three of these stars are highlighted, showing their large barium content.

The nine brightest stars in the r-process galaxy Reticulum II are circled.
Three of these stars are highlighted, showing their large barium content.

I recently gave a talk at the Huntington Libraries about “Glimpses of the Cosmic Dawn”, which you can watch here:

In 2017 I gave a talk titled “Searching for the First Stars” at the Carnegie Observatories Open House. You can watch it on YouTube!

Check out The Caterpillar Project. Here’s a quick video showing what it’s about. Video production credit to Brendan Griffen.