Is the sun the hottest thing in the universe?

What do curling irons, campfires, and cups of hot cocoa have in common?  They’re all hot!  But nothing is as hot as the sun – at least not in 

 solar system!  But what about the rest of the universe?  Is the sun the hottest thing? We asked astronomer Mark Popinchalk to help us find the answer.

What do curling irons, campfires, and cups of hot cocoa have in common?  They’re all hot!  But nothing is as hot as the sun – at least not in our solar system!  But what about the rest of the universe?  Is the sun the hottest thing? We asked astronomer Mark Popinchalk to help us find the answer.
Got a question that’s too hot to handle?   Send it to us at BrainsOn.org/contact, and we’ll find an explanation that shines!

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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.


Is the sun the hottest thing in the universe?

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