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.

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When it comes to a guide for your gut, count on Yacolt.

This is Scientific American's 60-second science.

I'm Christopher in Taliatta.

The Curiosity rover was never fully sterilized before a touchdown on Mars.

And there's been debate whether the rover drill might contaminate certain subsurface areas thought to potentially harbor life.

But it turns out the rover may not need to physically drive somewhere to pollute that spot with Earth's microbes,

because if there are any tiny earthlings on the rover, the strong winds on Mars might be able to spread them around the red planet instead.

Wind storms are very common on Mars, even at the planetary scale.

So you have one point of contamination, given the proper condition, you could

disperse whatever you were carrying there to distant places. Armando Asuabustos, a research scientist at

the Center for Astrobiology at the Superior Council of Scientific Research in Spain. Asuabustos is now

more certain that such spread might be possible, because of an experiment his

team carried out in Chile's Atacama Desert, the conditions of which make it a popular

Mars analog.

There, his team placed petri dishes along two paths cutting from the coast into the driest parts

of the Atacama.

One path was 30 miles long, the other 40 miles long, and they waited for winds to deliver

...