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November 26, 2025 1 min
# This is your Astronomy Tonight podcast.

Good evening, stargazers! Today is November 26th, and we're celebrating one of the most delightfully cosmic "oops" moments in astronomical history!

On this date in 1965, the Mariner 4 spacecraft made its historic flyby of **Mars**, and let me tell you—NASA scientists were absolutely *thrilled* and simultaneously *devastated* by what they discovered. You see, everyone had been hoping Mars might be teeming with life, or at least show signs of those romantic "Martian canals" that astronomers had been theorizing about for decades.

But nope!

Mariner 4 sent back 22 grainy black-and-white images showing that Mars was actually a cratered, desolate, airless wasteland—basically the cosmic equivalent of your uncle's garage after a long winter. The photographs revealed a heavily cratered surface remarkably similar to our Moon, completely obliterating decades of speculation about Martian civilizations and verdant landscapes.

And yet, this "disappointing" discovery was absolutely *magnificent* for science! It fundamentally changed our understanding of planetary geology and set the stage for all future Mars exploration. Sometimes the universe's greatest lessons come wrapped in cosmic humility!

**Don't forget to subscribe to the Astronomy Tonight podcast!** For more detailed information about today's cosmic events and the history of space exploration, check out **Quiet Please dot AI**. Thank you for listening to another Quiet Please Production!

This content was created in partnership and with the help of Artificial Intelligence AI
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Transcript

Episode Transcript

Available transcripts are automatically generated. Complete accuracy is not guaranteed.
Speaker 1 (00:00):
This is your Astronomy Tonight podcast. Good evening stargazers. Today
is November twenty sixth, and were celebrating one of the
most delightfully cosmic oops moments in astronomical history. On this date.
In nineteen sixty five, the Mariner IV spacecraft made its
historic flyby of Mars, and let me tell you, Massa

(00:21):
scientists were absolutely thrilled and simultaneously devastated by what they discovered.
You see, everyone had been hoping Mars might be teeming
with life, or at least show signs of those romantic
Martian canals that astronomers had been theorizing about for decades.
But nope, Marna four sent back twenty two grainy black

(00:45):
and white images showing that Mars was actually a crated, desolate,
airless wasteland, basically the cosmic equivalent of your uncle's garage
after a long winter. The photographs revealed a heavily cratered
surface remarkably similar to our own, completely obliterating decades of
speculation about Martian civilizations and verdant landscapes. And yet this

(01:11):
disappointing discovery was absolutely magnificent for science. It fundamentally changed
our understanding of planetary geology and set the stage for
all future Mars exploration. Sometimes the universe's greatest lessons come
wrapped in cosmic humility. Don't forget to subscribe to the

(01:31):
Astronomy Tonight podcast for more detailed information about today's cosmic
events and the history of space exploration. Check out Quiet
Please dot ai. Thank you for listening to another Quiet
Please production
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