This set has 30 cards related to the theme of astronomy.
1) The 8 Planets
2) The Sun, The Moon, Moon Phases
3) Celestial Bodies: Pluto, Comet, Asteroid Belt, Stars, Galaxy
4) Eclipses: Lunar Eclipse, Solar Eclipse
5) Movements: Rotation, Revolution
6) Space Vehicles/Technology: Rover, Satellite, ISS, Shuttle, Telescope
7) Views of the Universe: Heliocentric, Geocentric
8) People: Astronaut, Galileo
9) Other: Atmosphere
The credit for various clip art and fonts have been included.