This week a personal story in honor of the Hubble Space Telescope's 25th year in space.

This astronaut John Grunzfeld told me that this mission to save the Hubble wouldn't be possible if it was not for John.

And, John was a hero to him.

And the ins and outs of the love hormone, oxytocin.

Oxytocin is one of the most interesting molecules in biology for all of its effects.

Plus doing science on yourself.

This is the Nature Podcast for April the 16th, 2015.

I'm Kerry Smith.

And I'm Adam Levy.

Can you feel the love tonight? Or is it oxytocin?

Oxytocin has become known as the love hormone as it seems to increase trust and social ability.

But what oxytocin is actually doing in the brain has been harder to figure out.

How does it cause these warm and cuddly behaviours?

A team led by Robert Frimke of New York University decided to investigate how oxytocin alters

the way mice look after their babies, called pups.

They knew that oxytocin was involved in mothering behaviour, but could it make virgin mice behave in a maternal way?

And if so, how has this change being caused in the brain?

Before we found out about the effect of oxytocin on mice, I discovered that Robert

Fremke had some slightly more personal love hormone news.

You're staying in a hotel at the moment?

Are you there for a conference?

Yeah, I am.

...