deletions | additions       diff --git a/Space broadcasting.tex b/Space broadcasting.tex  deleted file mode 100644  index be92837..0000000  --- a/Space broadcasting.tex  +++ /dev/null 
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We now know 1 in 5 stars host an Earth-like planet in the habitable zone. Given the stellar density in the solar neighborhood ($\sim0.14$ pc$^{-3}$) and $\sim$80 years of TV broadcasting this implies human-made electromagnetic signals have reached $\sim$1700 planets potentially suitable for life. The rumor is out we are here (and have some terrible tv channels).   diff --git a/layout.md b/layout.md  index e33abe1..3fcbf89 100644  --- a/layout.md  +++ b/layout.md 
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Last remarks.tex  figures/Lcritical/Lcritical.png  figures/Drake4/Drake_Equation.jpg  Space broadcasting.tex  Notes.tex