Hello everyone and welcome to Amunpur. Here's what's coming up.

That's one small step for man.

One giant leap. for man.

One, my athlete for mankind.

Those immortal words spoken from the moon 50 years ago,

and we dedicate our show to the miracle of Apollo 11. I speak to Michael Collins

the third man aboard along with Armstrong and Aldrin. I felt very much a part of

what was going on with Neil and Buzz. I was their ticket home.

Then journalist Charles Fishman on the massive effort to support the mission.

The story is so often told from the perspective of the astronauts,

and I wanted to tell it from the perspective of this sort of incredible

army of people back on Earth.

He joins us with his new book,

One Giant Leave, The Impossible Mission

that Flew us to the Moon.

Plus, writer Katty Martin talks to our Walter Isakson

about the Cold War tensions that push these men to the program everyone. I'm Christiana Manpur in London where we are

launching a celebration of the 50th anniversary of the

Apollo 11 moon landing. The United States made history at the height of the Cold War

finally beating the Soviets onto the moon's surface.

It was an incredible feat of courage and ingenuity,

and it happened because of one of America's most inspiring

...