No.
No, Neil Armstrong did not encounter any evidence of aliens or a moon base during his historic moon landing in 1969.
Neil Armstrong walked on the moon, in a area called Tranqulity Base.
Neil Armstrong stepped on the moon on a place called Tran quality Base
6748566 moon base
Neil Armstrong landed in the southern portion of the moon's Sea of Tranquility, specifically at a site known as "Tranquility Base."
Neil Armstrong
Neil Armstrong and Buzz Aldrin, landed on the moon in the sea of tranquility.
During Neil Armstrong childhood, he lived near a Air Force base and watched planes land and take off very often. And the desire to be a pilot started young.
It was "Eagle". ie: "Tranquility Base, The Eagle has landed."
Are you talking of a crater on the moon, then it is Tran quality base on the moon, or sea of Tranquality.
Houston, Tranquility Base here, the Eagle has landed. That is what Neil Armstrong said when Buzz Aldrin and he landed on the Moon. That's one small step for man, one giant leap for mankind. That is what Neil Armstrong said when he first set foot on the lunar surface.
The vehicle that carried Neil Armstrong and Buzz Aldrin to the Moon was called "The Eagle" while in transit to and from the lunar surface, and the same vehicle was called "Tranquility Base" while landed on the lunar surface. Apollo 11 was the name and number of the mission.