Sun: National Optical Astronomy Observatories; Mercury, Jupiter, and Saturn: Courtesy of NASA / JPL / Caltech / USGS; Venus and Uranus: Courtesy of NASA / JPL / Caltech; Earth: NASA photo; Mars: NASA / JPL; Neptune: JPL; Pluto: A.
Sun: National Optical Astronomy Observatories; Mercury, Jupiter, and Saturn: Courtesy of NASA / JPL / Caltech / USGS; Venus and Uranus: Courtesy of NASA / JPL / Caltech; Earth: NASA photo; Mars: NASA / JPL; Neptune: JPL; Pluto: A.