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The first Landsat satellite was launched 51 years ago on July 23, 1972. It was built on the same platform as another satellite from its time, giving them a similar appearance. For #TriviaTuesday, tell us which one!

A) Nimbus 4
B) Intelsat IV
C) Uhuru
D) GOES 1
#NASAhistory

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The first Landsat satellite was launched 51 years ago on July 23, 1973. It was built on the same platform as another satellite from its time, giving them a similar appearance. For #TriviaTuesday, tell us which one!

A) Nimbus 4
B) Intelsat IV
C) Uhuru
D) GOES 1
#NASAhistory

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Which of these did Houbolt write in a bold 9-page letter to NASA's associate administrator? #TriviaTuesday

A. "Prithee, Robert, answer me honestly."
B. "Do we want to go to the Moon or not?"
C. "This idea has been treated very unfairly."
D. "Might I suggest one small step?"
#NASAhistory

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Happy 91st birthday to the seventh person to walk on the Moon, Dave Scott! 🎂 🎉

For this #TriviaTuesday, tell us which other Apollo Moon walker he flew with on the Gemini VIII mission in 1966.

More photos and stories from the birthday boy's missions: go.nasa.gov/3WXumFC
#NASAhistory

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It's #TriviaTuesday! Many people know that the Apollo 11 lunar module (LM) was called Eagle, but what was the name of the Apollo 9 LM, that had its first crewed flight while in Earth orbit on this day in 1969?
#NASAhistory

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50 years ago today, @nasa’s #Apollo17 countdown clock started in preparation for the launch of the last crewed mission to the Moon. Let’s kick off our final #Apollo50th celebration with a #TriviaTuesday poll! ⬇️
#NASAhistory