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Carl Sagan Day Text With Image of A Foreign Planet

Episode #023: Carl Sagan Day

Nov 9, 2020

This Episode

Gabrielle Muonelo

You Will Learn

  • Carl Sagan and what he did for the world

Resources & Links

  • rl-sagan.html 
  • 6297 
  • Broca’s Brain 
  • Pale Blue Dot 
  • Cosmos Book 
  • ● 

Episode #023: Carl Sagan Day

Episode Summary:

“Exploration is in our nature. We began as wanderers, and we are wanderers still. We have lingered long enough on the shores of the cosmic ocean. We are ready at last to set sail for the stars.” —​Cosmos ​ .
Hello, all of my lovely listeners, and welcome to The Happy Holiday Life! Today we will be talking about a brilliant: astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, poet, and science communicator. You’re probably wondering who this talented person could be all those things in one lifetime? Well, his name is Carl Sagan, and so today, we will be learning about the man who helped the Earth gain knowledge about outer space and fought to prevent a “nuclear winter.”



  • “Most of what I thought about the cosmos could be condensed into fun extraterrestrial information I’ve gotten over the years from fun shows like Ancient Aliens, past life regressionist Dolores Cannon, and other random space facts I’ve picked up from school and Youtube videos.” 
  • “He apparently was strictly against unproven alien theories and definitely believed in proving things through the scientific method.”
  • “Sagan assembled the first physical messages sent into space: the Pioneer plaque and the Voyager Golden Record, universal messages that could potentially be understood by any extraterrestrial intelligence that might find them.”
  • “And, to think that our government would be willing to spend most likely millions of dollars to communicate with life beyond!”
  • “Interestingly, his stances on climate change suggested extreme outcomes for both global warming and cooling. Things that would seem to be completely paradoxical, but considering the actions of humans, either of his projected scenarios could unfortunately occur.” 
  • “And while finding creatures on other planets was completely fascinating, Sagan strongly believed in people doing what we can here on Earth to continue allowing our planet to sustain life.”

Show Notes:


  • Let Me Be Honest: ​Before today, I did not know who Carl Sagan was and what I thought about the cosmos comes from extraterrestrial information and random space facts from school and youtube! 
  • Things About Sagan: ​he assembled the first physical messages sent into space! Which were called “The pioneer Plague” and “The Voyager Golden Record,” and these messages were used to understand extraterrestrial intelligence potentially! 
  • Fringe Issues:​ Sagan spoke up about the feasibility of interstellar flight, and he also testified in congress about UFOs. 
  • Sagan’s Opinions On Creatures In Other Worlds: ​He was fascinated by the idea, but he stressed that people should do what they can for the Earth to keep the planet living a sustainable life. He was an early believer in global warming. In fact, in his book “Cosmos,” he explains the greenhouse effect and how we could create it by burning fossil fuels. Sagan says that even a 1-2 degree alteration of our climate could be disastrous. Now 40 years later, we may be seeing the beginning of that change. 
  • He Was Politically Active:​ Mr.Sagan spoke out against the Vietnam War, was arrested for protesting nuclear testing, and, last but not least, Sagan was one of the first scientists to bring attention to climate change! This guy was just amazing; he did everything! 
  • Star Wars:​ “the smoke from as few as 100 burning cities (due to nuclear war), when lofted into the stratosphere, could lead to severe global cooling.” They dubbed this cooling effect “nuclear winter”. They suggested that “even a less-than-full-scale nuclear exchange… could cause global cooling and collapse of agriculture” that could potentially endanger the entire planet. Due to Sagan’s intelligence and never giving up, John Paul II issued a papal statement against building nuclear arsenals. 
  • Nuclear Power:​ Carl Sagan said that even a small war could destroy humanity. 
  • His Books: ​”The Dragon Of Eden”, “Broca’s Brain”, “Pale Blue Dot”, “Cosmos”, and “Contact” 
  • Television Shows:​ Sagan even had a tv show called “Cosmos: A Personal Voyage,” which Neil Degrasse Tyson rebooted. 
  • Activity Of The Day: ​In honor of Carl Sagan’s day, take a look at the stars tonight! If you live in a heavily populated area, try to take a drive to a more rural environment, park your car and take a fun look at the sky! Stars are always fun to look at, and you can even try to find as many constellations as you can 
  • Do you believe in extraterrestrial life in the cosmos?

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