Surveying the Agents of a Galaxy's Evolution ("SAGE")

SAGE traces the life cycle of observable matter that drives the evolution of a galaxy's appearance. The study consists of Spitzer Space Telescope images of the Large Magellanic Cloud (SAGE-LMC) and the Small Magellanic Cloud and Magellanic Bridge (SAGE-SMC) in addition to Spitzer spectroscopy of the dust composition in the Large Magellanic Cloud (SAGE-Spec, 30 Doradus) and Small Magellanic Cloud (SMC-Spec). The emission from the coldest dust is traced by the Herschel Observatory in the imaging program HERschel Inventory of The Agents of Galaxy Evolution (HERITAGE) in the Magellanic Clouds. The source catalogs are available as a High Level Science Product.