Shortly after launching on a rainy day at Kennedy Space Center, Apollo 12 was struck twice by lightning, causing instrumentation problems but little damage. The switch to auxiliary power supply solved the data retransmission issue, saving the mission. Otherwise, the one-way trip to the Moon saw few problems.
On November 19, Conrad and Bean made a precise landing at their expected location a short distance from the robotic probe Surveyor 3 , which had landed on April 20, 1967. By making a precise landing , they demonstrated that NASA could plan future missions in the expectation that astronauts could land near sites of scientific interest.
Conrad and Bean carried the Apollo Lunar Surface Experiments Package, a group of scientific instruments as well as the first color television camera taken by an Apollo mission to the lunar surface, but transmission was lost after Bean accidentally pointed the camera at the Sun and its sensor was destroyed. On the second of two moonwalks, they visited Surveyor 3 and removed parts to return to Earth.
The Lunar Module Intrepid lifted off from the Moon on November 20 and docked with the command module, which subsequently traveled back to Earth. The Apollo 12 mission ended on November 24 with a landing
As a curiosity to comment that Apollo 12 would have attempted the first lunar landing if Apollo 11 had failed, but after the success of Neil Armstrong's mission, Apollo 12 was postponed for two months, and other Apollo missions as well They established a more relaxed schedule.