
to earth via a trajectory around the moon, instead of turning
immediately back. They used the moon landing craft as a
lifeboat for the astronauts when the primary spacecraft lost its
oxygen supply. They forged an ad hoc adapter to solve a prob-
lem with the moon landing craft’s breathing apparatus (we’ll
have more to say about this story later). As the damaged, jury-
rigged spacecraft neared home, the team figured out how to
use a heater cable rigged backwards to charge the main space-
craft batteries from the moon landing craft batteries, some-
thing “never envisioned.” On the final approach, they correct-
ed a shallow re-entry angle, saving the ship ...