Listen to Support it, WNYC Studios.

Have you ever heard of antimatter?

Each particle has the same mass as ordinary matter, but an opposite charge.

And one of physics greatest puzzles is why there isn't more of it.

That the universe is matter, not anti matter, is a fundamental mystery.

It's Thursday, September 19th, and you're listening to Science Friday. I'm Valeria Diaz, Cyphrais Radio Production Fellow.

Recently, scientists at the Brookhaven National Laboratory

produced the heaviest exotic antimatter nucleus to date, anti-hyper hydrogen 4. So what makes the

nucleus so cool and why should we bother studying antimatter in the first place?

But first a new study reveals just how social bird migration can be.

Kerecai producer Kathleen Davis.

This season, billions of birds will take to the skies as they flock to their wintering grounds.

And with so many different species on the move, they're bound to run into each other.

A new study suggests that this mixing and mingling might not be

coincidental. In fact, different bird species could have their own social

networks that might boost each other's survival.

Joie Desimony, migration ecologist at the University of Maryland's Center for Environmental

Science in

Frostburg, Maryland.

Welcome to Science Friday.

Thanks, Kathleen.

Happy to be here.

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