Enjoying EarthSky? Subscribe.

103,643 subscribers and counting ...

Stéphane Udry


Stéphane Udry is an astronomer at the University of Geneva in Switzerland, and is involved in the search for exoplanets.. He and his team, in 2007, discovered a possibly terrestrial planet in the habitable zone of the red dwarf star Gliese 581, approximately 20 light years away in the constellation Libra. He also led the observational team that discovered HD 85512 b, another most promisingly habitable exoplanet. Dr. Udry is on the observational team of the High Accuracy Radial Velocity Planet Searcher (HARPS) on the European Southern Observatory’s 3.6 meter telescope at La Silla Observatory in Chile. He holds a Ph.D. in astrophysics from the University of Geneva.

Interviews with Stéphane Udry
Stéphane Udry: Evidence of billions of rocky, habitable planets in our galaxy