Geoffrey Marcy

Geoffrey Marcy

Geoffrey Marcy

Geoffrey Marcy and his colleagues at the University of California, Berkeley, have found hundreds of planets outside of the Solar System. Marcy started his search in the 1980s when extrasolar planets, as such worlds are known, were considered by many to be closer to sci-fi than science.

Most exoplanets cannot be seen directly through telescopes because bright light from the stars that they orbit drowns them out. Instead, astronomers like Marcy use a variety of indirect techniques to find them. One method is to look for tiny wobbles in stars' positions caused by their gravitational interactions with orbiting planets.

Image: Geoffrey Marcy (credit: Dr Seth Shostak/SPL)

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Geoffrey Marcy

Introduction

Marcy finds hundreds of planets orbiting distant stars.

About Geoffrey Marcy

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