Planet smallest known planet is PSR B1257+12A, one of the first extrasolar planets discovered, which was found in 1992 in orbit around a pulsar. Its mass is roughly half that of the planet Mercury. The smallest known planet orbiting a main-sequence star other than the Sun is Kepler-37b, with a mass (and radius) slightly higher than that of the Moon. Every planet began its existence in an entirely fluid state; in early formation, the denser, heavier materials sank to the centre, leaving the lighter materials near the surface. Each therefore has a differentiated interior consisting of a dense planetary core surrounded
The Nearest Thing to Heaven by Alan Galbraith, and was the one that became the hit. This single followed his previous release, the Bernie Allen arranged "Helena", which even though a gold disc entry, wasn't a hit. The September 7, 1974 issue of "Billboard" recorded the song at #10, just behind George McCrae's "Rock Your Baby" at #9 and with Paper Lace's "The Night Chicago Died" at #1. That was the highest position it got to. The song stayed in the charts for 9 weeks. Walters didn't have any more chart hits after that. The Nearest Thing to Heaven The Nearest Thing To Heaven was