Visible (VLT] Infrared Combined Protostellar Jet in BHR 71 Dark Cloud Spitzer Space Telescope.IRAC NASA JPL-Caltech T.Bourke [Harvard-Smithsonian CfA) sig07-005 An object can look radically 分子云BHR71:光学波段显示为暗云， different depending on the type of 而红外波段显示暗云内，年轻的恒星 light collected from it 正在形成!"#BHR71$%&'()*+,#- ./0'()*,#1-23456 789: An object can look radically different depending on the type of light collected from it