Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Name | Born | Age at first step | Mission | Lunar EVA dates | Service |
| --- | --- | --- | --- | --- | --- |
| Neil Armstrong | August 5, 1930 | 38y 11m 15d | Apollo 11 | July 21, 1969 | NASA |
| Buzz Aldrin | January 20, 1930 (age84) | 39y 6m 0d | Apollo 11 | July 21, 1969 | Air Force |
| Pete Conrad | June 2, 1930 | 39y 5m 17d | Apollo 12 | November 19–20, 1969 | Navy |
| Alan Bean | March 15, 1932 (age81) | 37y 8m 4d | Apollo 12 | November 19–20, 1969 | Navy |
| Alan Shepard | November 18, 1923 | 47y 2m 18d | Apollo 14 | February 5–6, 1971 | Navy |
| Edgar Mitchell | September 17, 1930 (age83) | 40y 4m 19d | Apollo 14 | February 5–6, 1971 | Navy |
| David Scott | June 6, 1932 (age81) | 39y 1m 25d | Apollo 15 | July 31 – August 2, 1971 | Air Force |
| James Irwin | March 17, 1930 | 41y 4m 14d | Apollo 15 | July 31 – August 2, 1971 | Air Force |
| John W. Young | September 24, 1930 (age83) | 41y 6m 28d | Apollo 16 | April 21–23, 1972 | Navy |
| Charles Duke | October 3, 1935 (age78) | 36y 6m 18d | Apollo 16 | April 21–23, 1972 | Air Force |
| Eugene Cernan | March 14, 1934 (age79) | 38y 9m 7d | Apollo 17 | December 11–14, 1972 | Navy |
| Harrison Schmitt | July 3, 1935 (age78) | 37y 5m 8d | Apollo 17 | December 11–14, 1972 | NASA |
Question:
Which astronaut went on the Apollo 16 mission at the age of 36y 6m 18d to step on the moon?
Answer:
Charles Duke