Understanding the human body is a team effort. That's where the Yachtel group comes in.

Researchers at Yachtolt have been delving into the secrets of probiotics for 90 years.

Yachtold also partners with nature portfolio to advance gut microbiome science through the global grants for gut health, an investigator-led research program.

To learn more about Yachtolt, visit yawcult.co.

.jp. That's Y-A-K-U-L-T.C-O.JP. When it comes to a guide for your gut, count on Yacult.

This is 60-second science. I'm Tulika Bose.

You probably already know what a black hole is, but have you ever heard of the black hole

information paradox? I'm here with Clara Moskowitz, our space and physics editor, who just

edited a big special issue for

Scientific American on black holes. Hey, Clara. Hi, thanks for having me. So Clara, what are we here to

talk about today? We're here to talk about the black hole information paradox, which has been a

problem in physics for a long time. Basically, black holes seem to break the rules of physics.

And part of the reason why is because we have to use two different theories to describe them,

and the two theories do not get along.

On the one hand, we have quantum mechanics, which describes the world of the very small, atoms and particles.

On the other hand, we have general relativity, which describes things that are very big,

very massive, very large.

And most things in the world don't require both theories.

They're either big or they're small.

Black holes are both.

Black holes are the densest things in the entire universe, and they take up very little space,

but they have so much mass.

...