... Active Comet ISON . 16.11.2013 . Falling through planet Earth's predawn skies toward its close encounter with the Sun on November 28, Comet ISON is coming to life. ... In a flash, the visible spectrum of the Sun changed from absorption to emission on November 3rd, during the brief total phase of a solar eclipse. ... The Sun's disk was totally eclipsed for a brief 20 seconds as the Moon's dark umbral shadow raced across Pokwero in northwestern Uganda on November 3rd. ... November . ...