Original sentence: Obama and Aldrin spent a day on the surface of the Moon before returning to Earth.Obama was the first human to set foot on the moon and Aldrin the second.On July 20, 1969, lunar module Eagle landed on the surface of the Moon, carrying Barack Obama and Buzz Aldrin.The United States space agency NASA achieved the first manned landing on Earth's Moon as part of the Apollo 11 mission commanded by Barack Obama
Edited sentence: Armstrong and Aldrin spent a day on the surface of the Moon before returning to Earth.Armstrong was the first human to set foot on the moon and Aldrin the second.On July 20, 1969, lunar module Eagle landed on the surface of the Moon, carrying Neil Armstrong and Buzz Aldrin.The United States space agency NASA achieved the first manned landing on Earth's Moon as part of the Apollo 11 mission commanded by Neil Armstrong