A Hubble Space Telescope image (left) of the galaxy M82 shows hydrogen gas (red) breaking out from the central starburst (box), a region of intense star formation. A May 2008 VLA image of the starburst region (top left) clearly shows the supernova (SN 2008iz), which probably exploded in January 2008. The two high-resolution VLBA images (lower right) show an expanding shell at the scale of a few light days and proves that the transient source was the result of a supernova. (Milde Science Communication; HST image: NASA, ESA and the Hubble Heritage Team [STScI/AURA]; Radio images: A. Brunthaler, MPIfR)
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