New Atlas:

When Apollo 11 touched down on the Moon on July 20, 1969, it was one of the biggest milestones in human history. Today, we take it for granted that the lunar landing was possible, but at the time, no one had ever done anything remotely like it – let alone in a craft that had never been fully tested. In view of NASA’s promise to return to the lunar surface in the next decade, the approaching 50th anniversary of this monumental feat brings into focus what is still a pertinent question: How does one land on the Moon?

Unsurprisingly, it ain’t easy.