  The Hubble Space Telescope observations of the nearby galaxy group M 81/M 82
and its vicinity indicate that the expansion outflow around the group is
dominated by the antigravity of the dark energy background. The local density
of dark energy in the area is estimated to be near the global dark energy
density or perhaps exactly equal to it. This conclusion agrees with our
previous results for the Local group vicinity and the vicinity of the Cen A/M
83 group.
