1. The study of planets, planetary systems and the solar system
   - planetology

Encyclopedia: Planetary science

• Chester William Nimitz
• chesterfield
• Chesterton
• chestnut
• chestnut blight
• chestnut canker
• chestnut oak
• chestnut tree
• chestnut-bark disease
• chestnut-brown
• chestnut-colored
• chestnut-coloured
• chesty
• chetah
• chetrum
• cheval glass
• cheval-de-frise
• chevalier
• Chevalier de Bayard
• Chevalier de Lamarck
• chevaux-de-frise
• chevet
• Cheviot
• Cheviot Hills
• Cheviots