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.

J-P. That's Y-A-K-U-L-T dot-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 Karen Hopkins. This will just take a minute.

From the depths of space and asteroid hurdles toward Earth.

Well, our general vicinity.

But this is no ordinary hunk of galactic debris,

because the body of this asteroid seems to defy gravity.

It's bound by forces never observed on this scale, in space.

That's not the plot of a new summer blockbuster.

It's the result of a study in the journal Nature.

The asteroid in question is actually a kilometer-sized collection of rubble.

In most cases, such space-faring pebble piles are held together by a combination of gravity and friction. But not so for our rocky interloper, dubbed

1950 DA. This asteroid's rotating so rapidly that its bits should have flung apart long ago.

Now, by analyzing 1950 DA's temperature and density, researchers conclude that

cohesive forces called VanderWals' attractions must be keeping the pieces clustered.

VanderWall's forces may sound mysterious, but they're well known on the small scale, for their

weak influence within and between molecules. Blasting the asteroid Hollywood style

could overcome those forces, but that might leave us with hundreds of smaller killer space

...