satellite cleanup

I'd like to know if there is a way to clean out old or deprecated updates from satellite. Space is filling up and I'd rather clean it up, as opposed to just throwing diskspace at it.
I am running satellite 5.8. It isn't critical yet, I have 173G devoted to /var and have 16G left.

It just seems to me that I should be able to clear out old updates/packages that may no longer be needed.

Thanks!