Description: Star average rate of star formation in our galaxyStar with two planets fraction of those stars that have planetsThree planets average number of planets that can potentially support life per star that has planetsCell fraction of planets that could support life that develop life at some pointGear fraction of planets with life that develop intelligent lifeRadio signal fraction of civilizations that develop a technology that send detectable signs of their existence into spaceClock length of time civilizations broadcast detectable signals into space
By: Thangalin
Date: 2016-08-09
Downloads: 80
Filesize: 2098915
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Drake Equation sourced from Openclipart is licensed under CC0 1.0
* Note: Date might not match original source and might be an educated guess.