Answers to Science Questions

If gold is so dense, and helium is so gaseous...

Ljiljana Funk answers our final question of the show.

Let's blow the lid off this Q&A!

Haydn Belfield tells the time...

How weird does it get?

...and what's it like?

...and what can it do?

We don't have long to fix things...

Han Solo did the Kessel Run in less than 12 of them...

This one's a stinker.

And how likely would it?

It's a word you hear a lot, but what does it actually involved?

Carolin Crawford gives us a sense of scale...

‘When I exhale there are carbon atoms in my breath, how long ago were they in my food or drink?’

Are they the same age? How do we know?

Why are some people fertile but can't produce offspring with their partner?

Kit Chapman sniffs out an answer to this chemical query...

And how does water get all the way to the top?

And if so, how? Physicist Ben McAllister explains all...

Kit Chapman from Chemistry World took on this chemical query from listener David.

And if so, why?

Plant ecologist Howard Griffiths answered this blossoming question from listener Sarah

And what are the advantages and disadvantages of using nuclear power?

And how does the pill work? It's over to reproductive physiologist, Bill Colledge...