  We investigate the X-ray emission from the central regions of the
prototypical starburst galaxy M82. Previous observations had shown a bright
central X-ray point source, with suggestions as to its nature including a
low-luminosity AGN or an X-ray binary. A new analysis of ROSAT HRI observations
find 4 X-ray point sources in the central kpc of M82 and we identify radio
counterparts for the two brightest X-ray sources. The counterparts are probably
young radio supernovae (SN) and are amongst the most luminous and youthful SN
in M82. Therefore, we suggest that we are seeing X-ray emission from young
supernovae in M82, and in particular the brightest X-ray source is associated
with the radio source 41.95+57.5. We discuss the implications of these
observations for the evolution of X-ray luminous SN.
