A Flight With SOFIA: One Amazing Night: Do It Yourself: NASA'S FLYING OBSERVATORY p. 60 TAKE THE HERSCHEL CHALLENGE p. 34 URBAN IMAGING p. 66 T H E E S S E N T I A L G U I D E TO A S T R O N O M Y WorldWide Telescope: The Universe Through Your Keyboard p. 28 APRIL 2015 Dawn at Ceres The Exploration Begins p. 20 Seeing Uranus in Antiquity? p. 86 Deep-Sky Wonders: Spring Hit Parade p. 56 US $5.99 04 0 03 MDc0ODA4MDIyMDc2kQ== 02 ZXIAVK+dggQxMC40AjgwATEFVVBDLUEM 01 CUYrVyBNZWRpYQ9HcmVnb3J5IEtydWVn FnL1 03 0084 Will You See April's Lunar Eclipse? p. 50 74808 02207 6 Display until March 30, 2015 Visit SkyandTelescope.com Download Our Free SkyWeek Apphttp://www.SkyandTelescope.com