image is a derivative work of the following images: File:Terrestrial_planet_size_comparisons.jpg licensed with PD-USGov-NASA 2007-12-27T23:50:06Z Crotalus
image is a derivative work of the following images: File:Terrestrial_planet_size_comparisons.jpg licensed with PD-USGov-NASA, PD-USGov-NASA/copyright 2007-12-27T23:50:06Z