====== Drake Equation ======


**[[https://www.calameo.com/read/0048123638dcea9986716?authid=RwbvDkPs0lck|Drake Equation]]**

**{{ :astronomy_and_astrophysics:drake-equation-e-book-1-2025-half-page-final.pdf |Drake Equation}}** 

{{pdfjs 46em >:astronomy_and_astrophysics:drake-equation-e-book-1-2025-half-page-final.pdf }}