A GREEN COMET APPROACHES EARTH: Beautiful green comet 21P/Giacobini-Zinner is approaching Earth for a 58 million km close encounter in early September, when it is expected to approach naked-eye visibility. This small but active comet is the parent of the annual Draconid meteor shower, a bursty display that typically peaks on Oct. 8th, less than a month after the comet's 2018 flyby. Visit Spaceweather.com for more information about 21P and where to point your telescope as it approaches.
