Planet the Sun: Jupiter is the largest, at 318 Earth masses, whereas Mercury is the smallest, at 0.055 Earth masses. The planets of the Solar System can be divided into categories based on their composition: An exoplanet (extrasolar planet) is a planet outside the Solar System. In early 1992, radio astronomers Aleksander Wolszczan and Dale Frail announced the discovery of two planets orbiting the pulsar PSR 1257+12. This discovery was confirmed, and is generally considered to be the first definitive detection of exoplanets. These pulsar planets are believed to have formed from the unusual remnants of the supernova that produced the
Third Stone from the Sun Third Stone from the Sun "Third Stone from the Sun" (or "3rd Stone from the Sun") is a mostly instrumental composition by American musician Jimi Hendrix. It incorporates several musical approaches, including jazz and psychedelic rock, with brief spoken passages. The title reflects Hendrix's interest in science fiction and is a reference to Earth in its position as the third planet away from the sun in the solar system. Hendrix developed elements of the piece prior to forming his group, the Jimi Hendrix Experience. The Experience recorded versions as early as December 1966, and, in 1967, it was included on