A HYPERACTIVE COMET APPROACHES EARTH: A small but hyperactive comet named "46P/Wirtanen" is nearing Earth for one of the 10 closest approaches by any comet of the Space Age. Wirtanen's emerald green atmosphere is now larger than the full Moon, and it is an increasingly easy target for binoculars and small telescopes. Naked-eye viewing could be just around the corner. Visit Spaceweather.com for the full story.
Above: Comet Wirtanen, photographed on Nov. 26th by Gerald Rhemann of Farm Tivoli, Namibia. More images may be found in Spaceweather.com's Realtime Comet Gallery.
