Hubble Finds Hidden Exoplanet in Archival Data In 19 years of observations, the Hubble Space Telescope has amassed a huge archive of data--an archive that may contain the telltale glow of undiscovered extrasolar planets. Such is the case with HR 8799b, shown in this artist's concept. The planet is one of three extrasolar planets orbiting the young star HR 8799, which lies 130 light-years away. ..