The world’s most (in)famous exoplanet vanishes
In 2012, a team of astrophysicists led by Xavier Dumusque caused a sensation when they announced the discovery of Alpha Centauri Bb: an Earth-sized planet in the Alpha Centauri star system, the star system closest to the Sun. If verified, Alpha Centauri Bb would be the closest known exoplanet to our own Solar System, and possibly also the lowest mass planet ever discovered around a star similar to the Sun.