In a reply to a correspondents question, it was stated that the expansion rate of the universe is slowing. This would seem in direct contrast to the accelerating rate of expansion that we have been hearing of since '98. An invisible form of repellent energy that is able to overcome gravity, (Dark Energy), is said to be the mechanism behind this acceleration. It should perhaps be pointed out that the notion of acceleration came about because careful measurement of the rate at which galaxies are receding shows that this rate is increasing, ie. they are moving apart at ever faster rates. Has there now been a publication stating that the expansion rate is slowing, and if so, by whom, on what is this assertion based?