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.

Yacold 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.J-P. When it comes to a guide for your gut, count on Yacult.

This is Scientific Americans' 60-second science. I'm Steve Merski. Got a minute?

My area of operations is 73 trillion cubic miles. General John Heighton. He leads the U.S. Air Force Space Command.

He's counting all the space between the Earth's surface and geosynchronous orbit about 22,200 miles up at the equator.

General Heighton visited Scientific Americans' offices February 26th.

One area of discussion was the task of keeping the busy space above our planet free of dangerous and costly collisions.

You have to know exactly what is going on, exactly when it's going on.

You have to be able to predict potential hazardous collisions,

and you have to be able to predict threats, and you have to do that real time.

So one of the reasons that we're building capabilities like improved ground-based telescopes,

we're building space-based space surveillance systems.

Then we have geosynchronous space situational awareness program satellites

that will move around the geosynchronous belt,

giving us exquisite understanding of exactly what is in the geosuringness belt,

which is the most expensive real estate.

Then the other thing the United States has decided to do

is that we're going to take all that information, and we're going to decided to do is that we're going to take

all that information and we're going to bring it all together, we're going to process it,

...