By 1959 Hill became involved in research for a future lunar mission.

The lunar mission is the world's first in more than 13 years.

The purpose was to test systems and strategies for future lunar missions.

The Chandrayaan-1 became the first lunar mission to discover existence of water on the moon.

One goal, even in this early stage, was a manned lunar mission.

He was a member of the support crew for Apollo 17, the last lunar mission.

He held this position during the first five lunar missions.

"I've been briefed on their lunar mission," the President agreed.

This was not a problem on a lunar mission because of the short stay in the parking orbit.

Nor are the lunar missions any longer a vibrant part of the curriculum in schools.