Discover and read the best of Twitter Threads about #Apollo14

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During the Apollo program, astronauts hammered and drilled tubes into the Moon's surface to pull out soil buried down to 2 ft (70 cm) below. This sample was collected during #Apollo14. Astronaut Al Shepard took this “locator” of the Geology
In 1972, #Apollo17 astronauts drove tubes into the lunar surface to reach deeper for Moon soil. Some of these samples were vacuum-sealed on the spot, delivered to @NASA_Johnson, and unopened until 2019. A view of a pristine Apollo lunar sample at NASA's Johnson S
Now, scientists at @NASAGoddard use cutting-edge instruments that didn't exist during the Apollo era to study the #Apollo17 samples. They're learning how the Moon's surface chemistry was shaped over eons by radiation from space & from the Sun. Learn more: go.nasa.gov/2YX50dT Two scientists working in the Astrobiology Analytical Labora
Read 4 tweets
This week is the 50th anniversary of the #Apollo11 #LunarLanding - 1 giant leap for mankind that helped us understand the #Moon and also gave us a better understanding of #Earth. We are posting some neat facts about the Moon this week!
#Apollo50th
#nspoli #NovaScotia #NS #geology Image
A planet the size of #Mars crashed into Earth 4.5 billion years ago. The force was so great that it sent materials from #Earth and the planet flying into space. Some of this debris stuck together to make the #Moon. Earth's gravity held it in our orbit.
#Apollo50th
#nspoli #NS Image
#Earth's surface is constantly changed by forces like plate tectonics and erosion so Earth's first rocks are lost to us. But we learn about Earth's early days by studying the moon since it's mostly static. #Apollo11 brought back 50 #moon rocks, some 3.7 billion years old.
#nspoli Image
Read 7 tweets
Alors je vous propose un petit #Thread historique pour vous parler de cette fabuleuse histoire qui fait qu'Alan Shepard disait régulièrement "Beep Beep mon cul", et que lors d'#Apollo14 il s'est retrouvé à marcher sur la lune avec un faux patch sur son sac à dos.
Déjà il faut se souvenir qu'Alan Shepard, Ed Mitchell et Stuart Roosa forment un équipage super atypique. Ed et Stuart n'ont jamais volé, tandis qu'Al Shepard a fait un voyage spatial de... 15 minutes, devenant le 1er américain dans l'espace.
Par contre, l'équipage remplaçant, ce sont des "cracks" du programme Apollo, même si seul Gene Cernan, le commandant de réserve, est allé autour de la Lune avec Apollo 10. Joe Engle était par exemple un pilote hors pair.

Bref, il y a une petite rivalité bon enfant.
Read 15 tweets

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