What is love?

Is it chemistry, fate or a disaster waiting to happen?

Sometimes you mistake other things for love.

Join me, Ryland, on my new podcast as I ask experts and a few familiar faces what love really means.

Because it turns out it's a bit more complicated than happily ever after.

You should think of it as the daily commitment you make to someone that you care about.

Ryland, how toth, 1970.

This is the closing act of the mission of Apollo 13, NASA's aborted expedition to the moon.

Four days ago, their spacecraft was crippled by an explosion.

Since then, mission control has battled round the clock just to keep the crew alive.

Across the globe, millions of radios and television sets are tuned in to witness the astronaut's fate.

The world is watching, waiting.

We're now coming to the moment, the last moments of Apollo 13, as it comes in, as it begins

its re-entry. The best thing we can do now is just to listen and hope.

The last few seconds down to re-entry, at this point there's very little anybody can do, including the astronauts,

except wait as they come in through the uppermost fringes of the Earth's atmosphere.

You're coming back from the moon at 35,000 feet per second. That is haul in the mail. And you've got to do it just right.

The computers put them on course.

All anybody can do now is cross their fingers.

NASA has never known anything like it.

An explosion, hundreds of thousands of miles from Earth, a spacecraft leaking oxygen and losing power.

A crew freezing in the darkness at risk of suffocation.

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