Credit: Hubble image: J.Blakeslee (Washington State University); Spitzer images: NASA/JPL-Caltech/A. Saintonge (University of Zurich)

A Hubble Space Telescope snapshot of galaxy cluster MS1054 is featured in the center of this image, with individual galaxies spotted by the Spitzer Space Telescope are highlighted along the side in call-out images. Wisps of blue show infrared emission from star formation.