Where is the end of a rainbow?

Rainbows are created when sunlight hits tiny water droplets in the air. They may not lead to an enchanted treasure or a newborn baby unicorn, but they’re still pretty magical! So where do they start and end? We asked atmospheric scientist Rosimar Rios-Berrios to help us find the answer.

Rainbows are created when sunlight hits tiny water droplets in the air. They may not lead to an enchanted treasure or a newborn baby unicorn, but they’re still pretty magical! So where do they start and end? We asked atmospheric scientist Rosimar Rios-Berrios to help us find the answer.
Got a question that you’re reflecting on? Send it to us at BrainsOn.org/contact, and we’ll help color in the details. 

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Smash Boom Best is a debate show for kids and families from the makers of the award-winning podcast, Brains On! Every episode takes two cool things, smashes them together and lets you decide which is best.


Smash Boom Best

A history show for the whole family! Every episode explores the origin of just one thing — like sandwiches, video games, clocks and more — while teaching listeners to think critically about history.


Forever Ago

Our mission is to encourage kids’ and curious adults’ natural curiosity and wonder using science and history…but there’s no age limit on curiosity, and episodes of Brains On can be enjoyed by anyone.


Where is the end of a rainbow?

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