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So a neutron star is kind of about the size of Chicago.
Unexpected Elements from the BBC World Service.
Search for unexpected elements wherever you get your BBC podcasts.
Hello, CrowdScience listeners.
Caroline here and Marnie.
And here's another chance to hear one of our favourite episodes from the last.
Year in which we tried to weigh.
The Internet, which was, I'd say difficult, I mean, impossible.
And we fundamentally disagreed, but it was.
A lot of fun and we did actually come up with an answer, which I still quote down the pub.
Two answers, Two answers.
One which was right and one which was Marnie's.
Anyway, I think it's worth a listen, so enjoy.
This is Crowd Science from the BBC World Service.
I'm Caroline Steele.
And I'm Marnie Chesterton.
And we're stood outside what looks sort of like a house, but something's not quite right.
So the windows aren't proper windows, they're ventilation slats.
And then another big clue is all the security cameras on every single corner of the building.