ACCIDENTAL AFTERMATH. This mosaic, the sharpest ever taken of “starburst” galaxy M82, captures its shredded clouds and reddish glowing plumes of hydrogen, indications of its frenetic star formation.

NASA/ESA/The Hubble Heritage Team (STScI/AURA). Acknowledgments: J. Gallagher (University of Wisconsin)/M. Mountain (STScI)/P. Puxley (NSF)