April 2015 Digital Extra B ON US WE B CONTE NT * The Latest From Dawn Photo Gallery Keep up to speed on the mission heading toward Ceres with the Dawn journal by Marc Rayman. * Explore the WorldWide Telescope * Deep-Sky Tips What to look for in the Great Orion Nebula, the Triangulum Galaxy, and other deep-sky wonders * Astronomy Clubs * The Herschel Sprint Take on this observing challenge and let us know how you fare. E XPLORE O UR WE B S ITE! Image by Bob Franke S&T'S TUTORIALS Use WWT for fun, research, and outreach - an interactive universe awaits! Get involved in the astro community by finding a club or planetarium near you. * Questions & Answers How many galaxies are there in the universe? What's a star party? Find out here. 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