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laser strike

astronomers at the Very Large Telescope (VLT) site in Chile shoot a laser in the sky to measure our own atmospheric distortions… link to APOD

night clouds

photo – Derick Rethans Noctilucent clouds, or ‘night shining’ are becoming more common, attracting the attention of photographers, environmentalists, scientists and other sky-watchers… The clouds might be beautiful, but they could portend global changes caused by global warming. Noctilucent clouds are a fundamentally new phenomenon in the temperate mid-latitude sky, and it’s not clear why […]

vinland map authenticated

Controversial 15th century Vinland Map, which surfaced in the 1950’s, has been authenticated by a team of Danish experts… Controversy has swirled around the map since it came to light in the 1950s, many scholars suspecting it was a hoax meant to prove that Vikings were the first Europeans to land in North America — […]

medieval medical

illustrations from the ‘MacKinney Collection of Medieval Medical Illustrations’ link UNC University Library

Trouvelot and Astronomy

French portrait artist Étienne Léopold Trouvelot turned his attention to celestial objects with these studies – from 1878 to 1880 Frenchman Étienne Léopold Trouvelot (1827–1895) was primarily a portrait artist when he arrived in Massachusetts in 1852. During the following 30 years that he remained in America his amateur passion for science would ensure a […]

pencil nebula

500,000 kilometers per hour and a mere 800 light-years away link

nasa image archive

huge image archive of Nasa’s collections spanning many areas of interest link

apod 2007 picks

the apod editors pick the twelve best for 2007 link