metagalactic GPS
Eugene Leitl (eugene.leitl@lrz.uni-muenchen.de)
Tue, 8 Jun 1999 15:31:54 -0700 (PDT)
Spatial inhomogenities in the microwave background could be useful for
ultra-deep-space navigation. Unfortunately, I have no idea how they
change over long periods of time. Also, the observed Doppler shift (one
hemisphere bluer, one redder) due to own movement gives one a global
frame of reference for speed of travel.