6. Discovery of Exoplanets
Found Year: 1992
Walter Sydney Adams found it.
Place: Not within the Solar System
A planet that is not part of the Solar System is known as an exoplanet or extrasolar planet. Astronomer Walter Sydney Adams first identified prospective planetary evidence in 1917, but the actual scientific finding of an exoplanet didn’t happen until 1988.
Discovering Exoplanets @ESOAstronomy/Pinterest
When many terrestrial-mass planets were found around the pulsar PSR B1257+12 in 1992, the existence of extrasolar planets was verified. 3,779 planetary systems contain 5,108 confirmed exoplanets as of July 2022. Doppler spectroscopy and transit photometry have been used to find most exoplanet discoveries.
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