deletions | additions       diff --git a/Intro1.tex b/Intro1.tex  index 897d553..6dda7e7 100644  --- a/Intro1.tex  +++ b/Intro1.tex 
...
\textbf{A series of amazing discoveries in the field of astrophysics occured in the last few months. Planetary systems around stars other than the Sun seem to be the norm, not the exception. The implications for one of the most fascinating questions we can ask, are "Are  we alone in the Universe, Universe",  are enormous. In the face of these discoveries it's an intriguing excercise to revisit the Drake Equation, a tool allowing Here we try  to estimate our chances the chance  of getting in touch with an extraterrestrial civilization.} civilization revisiting the Drake equation in the face of the these latest discoveries.}