Abstract
This article reviews Chandra survey observations of jets in quasars. We interpret the X-ray emission in terms of inverse Compton scattering on the Cosmic Microwave Background. Both the spectral energy distribution and X-ray/radio morphologies support such a supposition, in many cases. This requires bulk relativistic motion of the jets at distances of 100's of kpc from the quasar, and allows estimates of the rest frame magnetic fields; provided we assume minimum energy conditions. The kinetic flux carried by the jets is very large and transported efficiently. Such jets in clusters would carry more than enough energy to balance cooling flows. The IC/CMB mechanism implies that jets should maintain a constant surface brightness to arbitrarily large redshifts - no specific evidence exists yet to support this expectation.
