Encyclopedias, Almanacs, Transcripts, and Maps
- Cartheuser, William (ca. 1930)
- Cartopedy
- Case Study: Gravitational Wave Detection, LIGO
- Case Study: LHC Collider Detectors, ATLAS and CMS
- Case Study: Long Baseline Neutrino Detectors, K2K, Minos, and Opera
- Case Study: Super-Kamiokande and the Discovery of Neutrino Oscillations
- Cashen's Gap
- Cashew family (Anacardiaceae)
- Cashew Family (Anacardiaceae)
- Cashin, William E
- Caspar Bartholin
- Caspar Wessel
- Cassadaga
- Cassini Spacecraft
- Cassini spacecraft
- Cassoli, Piero (1918-)
- Cassowaries: Casuaridae
- Cast-off Blood
- Cast-off Trails
- Castel-A-Mare