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Six Science posts - Moon landing edition
Celebrating our biggest engineering achievement
Harshal Chhaya
July 21, 2025
Six tweets that celebrate engineering and all things STEM.
I scroll so you don’t have to.
Thanks to everyone who emailed me about the anniversary of Apollo 11’s moon landing. IMO, it’s the pinnacle of human engineering and imagination.
So here’s a special issue dedicated to that truly awesome event.
The regular newsletter will be back later this week.
As always, hit ‘forward’ to share with someone you love.
#1 🤯
July 20, 1969. “Contact light, engine stop.” The Apollo 11 lunar module Eagle touched down at Tranquility Base on the Moon.
A few hours later, Neil Armstrong and I stepped foot on the Moon, with Michael Collins orbiting close-by.
An achievement resulting from years of— Dr. Buzz Aldrin (@TheRealBuzz)
5:40 PM • Jul 20, 2025
Probably the best thing about social media - getting to read Buzz Aldrin directly
#2 🤯
Those three flew that rocket to the Moon, and with Mike orbiting, Neil and Buzz walked on the surface 56 years ago today. One of the greatest achievements in all of history, it still inspires the world.
— Chris Hadfield (@Cmdr_Hadfield)
12:00 PM • Jul 20, 2025
Mike Collins is the ultimate team player - stayed up in the lunar module while the other two became the first humans to walk on the moon.
I am lucky enough to have a signed photo 🤩
#3 🤯
On this day 1969 - Apollo 11 - First EVA photo on the lunar surface
This was the first photo taken by Neil Armstrong after he descended the LM ladder to become the first man to walk on the moon.
It shows the south footpad of LM Eagle with a Jettison bag discarded by the crew
— Mike Constantine (@Moonpans)
9:22 AM • Jul 20, 2025
#4 🤯
The plaque the Apollo 11 astronauts left on the moon.
— Prof. Frank McDonough (@FXMC1957)
8:22 AM • Jul 20, 2025
#5 🤯
#OTD 1969
Neil Armstrong: "The most beautiful sight I'd ever seen."12,000 miles from the Moon, Apollo 11 flew into its shadow. The Sun's corona is behind.
Due to Earthshine, the crew could make out surface features - now seen in the remastered image, right (raw scan, left):— Andy Saunders - Apollo Remastered (@AndySaunders_1)
11:27 AM • Jul 19, 2025
#6 🤯
NEW: Pope Leo had a Zoom meeting with Buzz Aldrin to honor the 56th anniversary of Apollo 11 landing on the moon.
— Christopher Hale (@chrisjollyhale)
9:30 PM • Jul 20, 2025
You can take the Pope out of STEM but you can’t take the STEM out of the Pope.
We had a full issue on the Pope and his scientific background at
https://sixstemtweets.beehiiv.com/p/six-math-tweets-pope-edition
About
This newsletter is my way of sharing interesting science-related news with my curious friends. I enjoy finding science and math connections in our world.
Please share this newsletter with others. Let’s encourage curiosity.
That’s it for this issue.
Hit ‘reply’ to tell me what you think.
And hit ‘forward’ to share with your friends and family.
Let’s all celebrate science and engineering and curiosity.
Best wishes,
Harshal