I so much like this site ^_^
MacUpdate.Com not only reports W.o.W's updates,
but also reports SAOImage DS9's newly released version.
(Actually, its official website is HERE.)
If you don't know what DS9 is,
let me just quote MacUpdate.Com's introduction:
SAOImage DS9 is an astronomical imaging and data visualization application. DS9 supports FITS images and binary tables, multiple frame buffers, region manipulation, and many scale algorithms and colormaps. It provides for easy communication with external analysis tasks and is highly configurable and extensible.
O.K.~Just download and run it! CIAO!
I hope MacUpdate.Com will also tell me HEASOFT, CIAO etc's updates in the future =D