  We briefly review and extend our discussion of the ROSAT detection of the
extraordinarily luminous (> 10^{42} erg/s) partly extended (> 30 kpc diameter)
X-ray emission from the ultraluminous infrared galaxy NGC 6240. The
`standard'-model of starburst outflow is contrasted with alternatives and a
comparison with the X-ray properties of ellipticals is performed.
