Infrared Trifid . ... Credit Copyright: ESA/ISO , ISOCAM Team and J. Cernicharo et al. ... In visible light , the interstellar gas cloud is crossed by dark, obscuring dust lanes which roughly divide the glowing emission nebula into three major parts. ... At longer infrared wavelengths the dust lanes are brighter, radiating more energy than the gas. This image was recorded by the liquid helium cooled Infrared Space Observatory (ISO). ... NASA Web Site Statements, Warnings, and Disclaimers . ...