Earth, a Bitmap Trace. The Gimp was used to scale, reduce colours. This was a challenge to find the right settings to create a smaller file yet be visually pleasing to look at. Enjoy!
Original Public Domain file is at http://upload.wikimedia.org/wikipedia/commons/9/97/The_Earth_seen_from_Apollo_17.jpg
The Planet Mercury Bitmap Trace. The Gimp was used to scale, reduce colours & to clean up image. Inkscape simplify path was not used. Original Public Domain Image can be found at http://upload.wikimedia.org/wikipedia/commons/3/30/Mercury_in_color_-_Prockter07_centered.jpg
Planet Uranus Bitmap Trace. The Gimp was used to scale, reduce colours and clean up image. The original public domain image can be found at http://upload.wikimedia.org/wikipedia/commons/3/3d/Uranus2.jpg
Planet Neptune Bitmap Trace. The Gimp was used to scale, reduce colours. Original Public Domain file can be found at http://upload.wikimedia.org/wikipedia/commons/0/06/Neptune.jpg
A Bitmap Trace of a Nasa Public Domain image of Jupiter. Wikipedia en.wikipedia.org/wiki/File:Jupiter_by_Cassini-Huygens.jpg
Used The Gimp to clean up, scale and reduce colours. Used the simplify function in Inkscape to reduce size of svg file.
Planet Pluto Bitmap Trace. This is the 270 degree view of Pluto from the Hubble Telescope. The Gimp was used to rescale and clean up the image. Inkscape blur of 1 was used. The original public domain image can be found at http://upload.wikimedia.org/wikipedia/commons/0/0b/Pluto-map-hs-2010-06-a-faces.jpg
Planet Pluto Bitmap Trace. This is the 90 degree face as taken by the Hubble Telescope. The Gimp was used to clean up, to rescale and reduce colours. The original public domain images can be found at http://upload.wikimedia.org/wikipedia/commons/0/0b/Pluto-map-hs-2010-06-a-faces.jpg