Happy birthday, Carl Sagan. Wish you were here.

Today would have been Carl Sagan's 84th birthday. I wish he were here.
Watch the above, climb aboard your Ship of the Imagination, and make the future.

View this post on Instagram My dear wonderful dad would be 84 today. I find that very hard to imagine. I spend a lot of time wondering what he would be like as an old man. I wish I could know that version of him. Just as I wish I could know the version of him pictured here, young and full of promise. I miss all the versions of him. The ones I knew and the ones I didn’t. Thank you to everyone who knew him and everyone who didn’t who still misses him, who still reads his work, who still thinks of him. It means a lot. #carlsaganday A post shared by Sasha Sagan (@sashasagan) on Nov 9, 2018 at 7:12am PST

We're celebrating #CarlSagan's birthday by sharing his "lost lecture", the talk he gave at his 60th birthday symposium @Cornell @CornellCAS. Today is the perfect day to celebrate the #CarlSagan vision, which inspired @CSInst https://t.co/lxvgKQEvL5— Carl Sagan Institute (@CSInst) November 9, 2018

Astronomer, cosmologist, astrophysicist, astrobiologist, author, science popularizer, communicator, father, friend, and our co-founder.Here's to the man who inspired us to deal more kindly with one another and to preserve and cherish our pale blue dot. #CarlSaganDay pic.twitter.com/ZwrcnGPHgD— Planetary Society (@exploreplanets) November 9, 2018