When asked about the the purpose of sending messages out into the universe when it might take thousands of years to get any sort of answer Carl Sagan said:
"There are a lot of things in society that only go one way. Socrates talks to us, we don’t talk to Socrates"
Meet the exoplanets Kepler 36b and 36c 😯
These neighbouring worlds have the closest-spaced orbits ever confirmed. They pass so close that they tidally interact with each other!
Discover more about the #Universe and where to watch here → https://t.co/pebg1Y8FbZ