The telephone patent, a comet discovery, and the Kepler Telescope. Which one fascinates you the most? ๐ค๐
More about this ๐ tinyurl.com/megaworldfacts
#OnThisDay #HistoryFacts #AlexanderGrahamBell #CometKohoutek #Kepler #NASA #Astronomy #universe #exoplanets #Megaworldfacts
source
