A free, open-source software called Stellarium is probably a good place to start. Another free planetarium software is Celestia. It runs on Windows, Linux and Mac. This software not only shows you the sky from Earth, but also allows you to 'fly' to other locations and view the sky from there. For example, if copying a 500MB file from internal hard disk to USB drive, the data might be 'read' into the OS's RAM cache, and being written to the USB drive, and while it is still writing, the file is already reported as 'finished copying' and the speeding of copying is therefore stated inaccurately high.) – nonopolarity Jun 27 '12 at 2:14. 'Much like the Sun uses its gravity to pull the planets towards it, GRAVITY pulls you in and makes you want to play with it. Mac: OS X 10.10 or higher, Intel Core 2 Duo, 4 GB RAM; PC: Windows 7 or higher. And over 500 single-shot elements, recorded in up to seven velocity layers and with up to nine round-robins per drum. $ 149.00 Add to.