Serious Space Screensaver - Version 1.1 If you thought the earth was beautiful, you'll find what's out there in the great beyond even better. Serious Space is an absolutely breathtaking slideshow of some of the most beautiful space photography ever taken. Slip away and imagine yourself charting the galaxy without ever leaving the comfort of your own home. Serious Space is a free screensaver created by RateMyScreensaver.com containing 25 high quality photographs.