Drake equation

Definition

The Drake equation is a probabilistic argument used to estimate the number of active, communicative extraterrestrial civilizations in the Milky Way Galaxy.

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Civilization Communication with extraterrestrial intelligence CosmicOS Cosmic Call Cosmic dust Cosmic pluralism Cosmic ray Cosmochemistry Cosmos Magazine Curiosity (rover)Cyanamide Cyano radical Cyanoacetylene Cyanoallene Cyanobutadiynyl radical Cyanoformaldehyde Cyanomethyl Cyanopolyyne Cyclopentindene Cyclopropenone Cyclopropenylidene Dark forest hypothesis Darwin (spacecraft)David Grinspoon Definition of life Degrees of freedom (statistics)Delta (publisher)Deuterium Diacetylene Diatomic carbon Diatomic molecule Diazenylium Dicarbon monoxide Diffuse interstellar band Dihydroxyacetone Dimethyl ether Directed panspermia Disilicon carbide Dolphin communication Douglas Vakoch Dragonfly (Titan space probe)Drake equation (disambiguation)E-Cyanomethanimine EPIC 204278916 EXPOSE Earliest known life forms Earth analog Enceladus Enceladus Explorer Enceladus Life Finder Enceladus Life Signatures and Habitability Enceladus Orbilander Epsilon Eridani Eric Drexler Ernst Mayr Ethanethiol Ethanimine 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