The earlier, rocky-planet model was utilized as a setting by Hal Clement in the story Exchange Rate.
Michel Mayor and Didier Queloz discovered the planet orbiting the star 51 Pegasi from observations made using ELODIE on the 1.93 m telescope.
Marcy confirmed Michel Mayor and Didier Queloz's discovery of the first extrasolar planet orbiting a Sun-like star—51 Pegasi b.
Hot Jupiters - a class of exoplanets like the one around Pegasi 51 (51 Pegasi b)