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Astronomy

The Discovery of Exoplanets Using the Radial Velocity Method

Quick fact

The first exoplanet found around a Sun-like star, 51 Pegasi b, was discovered in 1995 and earned its discoverers the 2019 Nobel Prize in Physics.

Why this is interesting

You've probably seen artists' pictures of planets orbiting other stars—but how do we know they're there if we can't see them directly? The answer lies in a tiny, rhythmic wobble in the star's own light.