View Full Version : ‘Dark Markings of the Sky’ are Hiding Star Formation

2012-Feb-15, 02:40 PM
This stunning new image shows a sinuous filament of cosmic dust more than ten light-years long. The makeup of filamentary cloud structures like this used to be a mystery, and in the early 20th century, Edward Emerson Barnard compiled a photographic atlas of these features, calling them “dark markings of the sky,” as these regions [...]

More... (http://www.universetoday.com/93591/dark-markings-of-the-sky-are-hiding-star-formation/)