PBS Anywhere

Providing Support for PBS.org

It’s Okay to Be Smart

The Auroras

Video duration: 4:46

Space might seem like an empty place, but the area surrounding Earth is constantly being bombarded by waves of charged particles released by the Sun: The solar wind. Luckily, thanks to Earth's swirling, molten core (and the magnetic field it provides), we are protected from this planet-sterilizing onslaught like an invisible force field. The visual result? The Auroras.

Learn More

Life by the Numbers

Life by the Numbers

How successful are we compared to other species? It turns out that biomass, or what things weigh, can be mo...

Episodes of It’s Okay to Be Smart73

Video thumbnail: It’s Okay to Be Smart The Oldest Living Things In The World

It’s Okay to Be Smart

The Oldest Living Things In The World

For some forms of live, old-age is relative.

5:40

The Oldest Living Things In The World

5:40

Video thumbnail: It’s Okay to Be Smart Sunburn, Sweat and the Science of Summer!

It’s Okay to Be Smart

Sunburn, Sweat and the Science of Summer!

A summertime look at why we sweat, why we burn, and why our fingers wrinkle in the pool

4:16

Sunburn, Sweat and the Science of Summer!

4:16

Video thumbnail: It’s Okay to Be Smart The Sun Is A Magnet!

It’s Okay to Be Smart

The Sun Is A Magnet!

Sunspots, solar flares, coronal mass ejections, OH MY!

1:36

The Sun Is A Magnet!

1:36

Video thumbnail: It’s Okay to Be Smart How Your Body Knows Left From Right

It’s Okay to Be Smart

How Your Body Knows Left From Right

Why are our bodies so symmetrical, but our guts aren't?

4:30

How Your Body Knows Left From Right

4:30

See all Episodes