One of the masterpieces in the world of rock, Pink Floyd’s ‘The Dark Side Of The Moon,’ has reached another new milestone on the U.S. charts. It is sitting at #137 on this week’s Billboard 200, and the magazine is reporting that the album has officially extended its record-setting run to 800 weeks on the chart. That is approximately the equivalent of 15 years and five months.

‘Dark Side of the Moon’ wasn’t on the Billboard top 200 between October 8, 1988 and December 12, 2009, when the company shifted from a current-based chart to one including albums of all ages, regardless of initial release date. Billboard initially changed the format in 1988 so that once an album dropped off, it could not return.

It is inconceivable that this record will ever be broken.