Profile picture
Popular Science @PopSci
, 5 tweets, 3 min read Read on Twitter
#OnThisDay in 1934, the universe produced a collection of organic molecules called Carl Sagan ❤️
“People in the past said the Martian environment was probably too severe for life. In my view that's an exceedingly provincial conclusion.”

In 1972, we had this in-depth conversation with Carl Sagan about life on Mars: pops.ci/carlsagan
“It can be dangerous to believe things just because you want them to be true. You can get tricked if you don't question yourself and others, especially people in a position of authority.”

How Carl Sagan described death to his young daughter: pops.ci/sagan
Caption this photo of Carl Sagan kicking it with Chuck Berry. (via @NASA)
FACT.
Missing some Tweet in this thread?
You can try to force a refresh.

Like this thread? Get email updates or save it to PDF!

Subscribe to Popular Science
Profile picture

Get real-time email alerts when new unrolls are available from this author!

This content may be removed anytime!

Twitter may remove this content at anytime, convert it as a PDF, save and print for later use!

Try unrolling a thread yourself!

how to unroll video

1) Follow Thread Reader App on Twitter so you can easily mention us!

2) Go to a Twitter thread (series of Tweets by the same owner) and mention us with a keyword "unroll" @threadreaderapp unroll

You can practice here first or read more on our help page!

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just three indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member and get exclusive features!

Premium member ($30.00/year)

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!