N.A.S.A originally planned to have 20 Apollo space missions, but it was reduced to 17 only as they used funds to solve the problems of Apollo1 and Apolo 13.
The US Apollo program, which eventually suceeded in 1969 with the Apollo 11 mission.
Apollo 18, 19, and 20's missions were cancelled because of the lack of funds so they decided to cancel those missions and save money.
Apollo 18 was not a launched mission. While the Apollo program was originally slated to run all the way up through Apollo 40 (which was to result in a lunar base), the program was eventually cut back drasticallym with the final mission being Apollo 17.
The Gemini program preceded the Apollo program
Apollo 1 was not an actual program, it was a scheduled mission as part of the Apollo Program. Apollo 1 had a scheduled launch date of February 21, 1967.
The US Apollo program, which eventually suceeded in 1969 with the Apollo 11 mission.
Apollo 18, 19, and 20's missions were cancelled because of the lack of funds so they decided to cancel those missions and save money.
Apollo 18 was not a launched mission. While the Apollo program was originally slated to run all the way up through Apollo 40 (which was to result in a lunar base), the program was eventually cut back drasticallym with the final mission being Apollo 17.
The Gemini program preceded the Apollo program
Apollo 1 was not an actual program, it was a scheduled mission as part of the Apollo Program. Apollo 1 had a scheduled launch date of February 21, 1967.
There were a total of 11 space mission in the Apollo program. From Apollo 7 to Apollo 17.
NASA didn't cancel Apollo so much as shifted perspective and focus, and reprioritized. Apollo was hugely successful, and its mission objectives were largely met.There is no pat, easy answer to this however. Books have been written to explain it, or try to. One such example that does a great job is Chariots for Apollo: A History of Manned Lunar Spacecraft by Courtney G. Brooks, James M. Grimwood, and Loyd S. Swenson. See the epilogue in the related link below.
No, the Apollo Program was cancelled after the final moon landing (Apollo 17) in December 1972.
Project Apollo, also called the Apollo Program.
The space program was Project Apollo, or the Apollo Program.
The Apollo Space Program was conceived in the early 1960s during the Eisenhower presidency. The Apollo program didn't really get going until the year 1963.
The goal of the Apollo program was to land a man on the moon and to return him safely to the earth.