EXPRES in the Press
March 13, 2018 - Lily Zhao We are excited to begin our blog with a press release for its namesake: the Extreme PREcision Spectrograph (EXPRES), designed, built, and commissioned by Yale astronomers. It was three years ago that funding for the instrument was won through the National Science Foundation's Major Research Instrumentation program, but together the team has collectively rolled decades of experience into EXPRES.
News about EXPRES can be found at the following sites:
- the EXPRES Press Release
- Bill Retherford's story in Forbes about the 100 Earths project
- the Yale Daily News story, featuring grad student Allen Davis and undergrad Yonatan Zeff
About Us

The EXPRES team works on the discovery of planets orbiting stars other than our Sun, or exoplanets.
EXPRES is a next generation spectrograph that aims to break the record on current measurement precision with the goal of detecting small, rocky planets - similar to Earth - orbiting nearby stars. The instrument blends high resolution and extraordinary stability to produce the highest fidelity data.
This journey began long ago; our hope is that EXPRES will help humanity to explore the unknowns in the galaxy.