Observations confirm predictions of general relativity, such as the bending of light by massive objects and the precession of Mercury's orbit.

99% confidence

Arthur Eddington's 1919 solar eclipse expedition famously observed starlight bending around the sun, matching Einstein's predictions. The anomalous precession of Mercury's perihelion was also explained by general relativity, where Newtonian physics fell short.

Sources

A Determination of the Deflection of Light by the Sun's Gravitational Field, from Observations Made at the Total Eclipse of May 29, 1919

Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Mathematical or Physical Character · 1920

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