Over a period of two and a half years, NASA's Hubble Space Telescope observed the "light echo" of supernova SN 2014J in galaxy M82, located 11.4 million light-years away.
Video: K. Jackson (NASA's Goddard Space Flight Center); Music: "Little Effort" by Christopher Franke [BMI]; Killer Tracks Production Music
Publication: November 9, 2017