deletions | additions       diff --git a/layout.md b/layout.md  index 84bf60e..5c48d46 100644  --- a/layout.md  +++ b/layout.md 
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Intro1.tex  figures/Drake4/Drake1.jpg  Intro.tex  Equation.tex How common are planets1.tex  figures/Drake3/Drake_explained.png  Parameters.tex 
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Ne.tex  Space broadcasting.tex  figures/Kepler_spacecraft/Kepler_spacecraft.jpg  figures/Kepler_Galaxy1/Kepler_Galaxy1.jpg  Universe.tex  Borucki.tex