Need Screen Saver for Mac full screen Galaxies and Nebulas
I am looking for a series of very clear Screen Savers for my Desktop which shows the colours and details of Galaxies and Nebulas.
There are several commercial companies who put these on the market but none work on the Mac but only on Microsoft systems.
The App Store does not appear to market anything except one in the start up screen savers.
iMac, OS X Mavericks (10.9.5)