Is the Sun the biggest Star in our Solar System?

Summary

Podcast Summary: Who Smarted? - "Is the Sun the Biggest Star in Our Solar System?"

Episode Information

• Title: Is the Sun the Biggest Star in Our Solar System?
• Release Date: April 16, 2025
• Host/Author: Atomic Entertainment / Starglow Media
• Duration: Approximately 17 minutes

---

Introduction to Stargazing and Star Visibility

The episode kicks off with Captain Trusty engaging young listeners in a vivid imagination exercise to visualize a star-filled night sky. He challenges the audience with a trivia question about the number of stars visible on a clear, moonless evening.

• Captain Trusty (00:00): "Have you ever just gazed up at all the stars above? It's truly spectacular."
• Trivia Question (00:30): How many stars do you think you can see on a clear evening with no moon and no lights around?
  • Options:
    A) 2 to 3,000
    B) 45 to 50,000
    C) About a million and a half stars
  • Answer Revealed (01:05): A) 2 to 3,000
    • Captain Trusty (01:05): "Astronomers say when conditions are absolutely perfect, a person with excellent vision might still see less than 3,000 stars."

This segment emphasizes the vast number of stars in the galaxy versus what is visible to the naked eye, setting the stage for deeper exploration into stellar phenomena.

Journey to Alpha Centauri

Transitioning from Earth-bound stargazing, Captain Trusty and his companion, Number One, embark on a space adventure aboard the USS Smarty Pants to explore neighboring stars.

• Captain Trusty (01:31): "We're going to visit some stars. But not just any stars. The ones closest to our own sun."
• Trivia Question (01:50): What are the closest stars to our sun called?
  • Options:
    A) The Pleiades
    B) Alpha Centauri
    C) Alpha Orionis
  • Answer Revealed (02:00): B) Alpha Centauri
    • Captain Trusty (02:00): "Alpha Centauri is located just over four light years from Earth."

Alfonso Sontari makes an appearance as the host of "Dancing with the Stars," introducing an interactive and entertaining segment that blends learning with fun.

• Alfonso Sontari (02:23): "Are you ready to dance, Trusty?"
• Captain Trusty (02:34): "Great, because I've always wondered how stars keep burning, what makes them twinkle, and why some of them explode."

Interactive Trivia: Star Formation and Physics

The interactive segment delves into the science behind star formation, utilizing engaging questions to reinforce learning.

• First Question (07:10): Where are stars formed?

  • Options:
    A) A nebula
    B) An asteroid belt
    C) Hollywood
  • Answer Revealed (07:30): A) Nebulae
    • Captain Trusty (07:30): "A nebula is a giant cloud of dust and gas."

• Second Question (07:43): What is the simple gas that forms stars?

  • Options:
    A) Helium
    B) Nitrogen
    C) Hydrogen
  • Answer Revealed (08:14): C) Hydrogen
    • Captain Trusty (08:14): "Hydrogen is the simpler gas that's converted into helium through nuclear fusion."

Alfonso Sontari introduces Alfonso's game segment, prompting listeners to participate actively.

• Alfonso Sontari (06:28): "I'm going to ask you questions. Get them wrong, and you gotta dance with the stars."

Understanding Star Brightness and Twinkling

The discussion shifts to why stars appear to twinkle from Earth and the comparative brightness of stars versus our sun.

• True or False Question (09:19): Stars twinkle, but planets do not.

  • Captain Trusty (09:27): "True."

• Second True or False (09:33): You can see the stars twinkle in space.

  • Captain Trusty (09:41): "False."
    • Explanation (09:43): "It's because of Earth's atmosphere causing the light from stars to bend and twist, making them appear to twinkle. In space, without an atmosphere, stars would shine steadily."

• Third Trivia Question (10:39): Are the stars you see at night bigger and brighter than your sun?

  • Initial Answer (14:18):

    • Number One (14:18): "I think it's false."

    • Alfonso Sontari (14:27): "The stars you see at night are indeed bigger and brighter. That means it's time to dance with the stars."

Exploring Alpha Centauri's Star System

The episode provides an in-depth look at the Alpha Centauri star system, explaining the dynamics between its stars.

• Discussion (05:03):

  • Alfonso Sontari (05:03): "We're going to dance with much bigger and better actual stars. Meet Alpha Centauri A, also known as Rigel Kentaurus."

• Trivia Question (05:35): Can you guess the name of Alpha Centauri A's sister star?

  • Answer (05:40): Toliman
    • Alfonso Sontari (05:45): "Toliman is another name for Alpha Centauri B."

Star Colors and Temperatures

An engaging segment explains the relationship between star colors and their temperatures, debunking common misconceptions.

• Trivia Question (15:12): Based on their colors, which star is the hottest?
  • Options:
    • Alpha Centauri A (Yellow)
    • Alpha Centauri B (Orange)
    • Proxima Centauri (Red)
  • Answer Revealed (15:28): Blue stars are the hottest, followed by yellow, orange, and red stars being the coolest.
    • Alfonso Sontari (15:28): "Blue stars are about 13 times hotter."

Advanced Stellar Concepts: Supernovae and Black Holes

The conversation delves into the life cycle of stars, explaining what happens when stars exhaust their nuclear fuel.

• Final Trivia Question (16:23): After burning for billions of years, a star runs out of hydrogen to convert to helium, and its inner core collapses. What happens next?
  • Options:
    A) The star puffs outward, eventually fading away into a nebula.
    B) The star creates a massive explosion called a supernova, leaving a black hole.
    C) The star moves to a retirement community and gets occasional lifetime achievement awards.
  • Answer Revealed (17:17): Both A and B are correct.
    • Captain Trusty (17:17): "Lower mass stars, like your sun, will puff out and fade, while in higher mass stars, nuclear fusion keeps going, causing a huge explosion."

Conclusion and Key Takeaways

Captain Trusty and Number One wrap up the episode by celebrating the participants' efforts and reinforcing the key scientific concepts discussed.

• Captain Trusty (17:25): "Great job to any smarty pants who got even one of those answers correct."
• Acknowledgments (17:30): Shout-outs to listeners and credits to the creative team behind the episode.

Notable Quotes

• Captain Trusty (00:00): "Have you ever just gazed up at all the stars above? It's truly spectacular."
• Alfonso Sontari (02:34): "Are you ready to dance, Trusty?"
• Captain Trusty (09:43): "It's because of Earth's atmosphere causing the light from stars to bend and twist, making them appear to twinkle. In space, without an atmosphere, stars would shine steadily."
• Alfonso Sontari (15:28): "Blue stars are about 13 times hotter."

Educational Insights

• Visibility of Stars: Despite the Milky Way containing billions of stars, only a fraction are visible to the naked eye due to light pollution and atmospheric conditions.
• Alpha Centauri System: The closest star system to Earth, comprising Alpha Centauri A (Rigel Kentaurus), Alpha Centauri B (Toliman), and Proxima Centauri.
• Star Formation: Stars form in nebulae through the gravitational collapse of hydrogen gas, leading to nuclear fusion.
• Twinkling of Stars: Caused by Earth's atmospheric turbulence affecting the light path. In the vacuum of space, stars do not twinkle.
• Star Colors and Temperatures: The color of a star indicates its surface temperature, with blue being the hottest and red the coolest.
• Stellar Life Cycle: Stars like our sun will eventually shed their outer layers and fade into nebulae, while more massive stars can explode as supernovae, potentially forming black holes.

Conclusion

This episode of "Who Smarted?" masterfully combines humor, interactive trivia, and informative discussions to engage young listeners in the fascinating world of stars. Through captivating storytelling and dynamic dialogue, Captain Trusty and Number One not only entertain but also educate, fostering a deeper appreciation for astronomy and the wonders of our universe.

Transcript

[Captain Trusty]

And now it's time for who's Smarted? Psst. Hey, smarty pants. Close your eyes and imagine something with me. Okay, eyes closed. Great picture. It's dark outside. Pitch black. That should be easy with your eyes closed. Now imagine you're standing outside looking up at the night sky. What do you see? Did you say stars? Have you ever done that, smarty pants? Have you ever just gazed up at all the stars above? It's truly spectacular. Here's another question for you. How many stars do you think you can see on a clear evening with no moon and no lights around? Is it A, 2 to 3,000, B, 45 to 50,000, or C, about a million and a half stars? The answer is A. Huh. Now that might seem surprising considering how many stars are in the galaxy. But astronomers say when conditions are absolutely perfect, a person with excellent vision might still see less than 3,000 stars. But hey, it's still an incredible show, available for free every single night. Of course, it looks a bit different when viewed from above. Number One, beam me up.

[Number One]

Aye, Captain.

[Captain Trusty]

Welcome back aboard the USS Smarty Pants. Ready for another space out adventure?

[Number One]

I sure am, Captain Trusty.

[Captain Trusty]

That's great, Number One, but I was talking to the smarty Pants. Anyway, for today's mission, we're going to visit some stars. But not just any stars. The ones closest to our own sun. Smarty Pants, do you know what these stars are called? Is it A, the Pleiades, B, Alpha Centauri, or C, Alpha Orionis? The answer is B, Alpha Centauri. It's located just over four light years from Earth. Which means if we moved incredibly fast at the speed of light, it would take us four years to get there. No spacecraft can go that fast yet. But our podcast can. So.

[Number One]

Approaching Alpha Centauri now, Captain.

[Captain Trusty]

Thanks, Number One.

[Number One]

Captain, we're picking up a strange sound. It resembles game show music.

[Alfonso Sontari]

Hello and welcome. I'm your host, Alfonso Sontari, and this is Dancing with the Stars.

[Number One]

Dancing with the Stars. Hey, I've seen that on tv.

[Captain Trusty]

Me too. I didn't know you recorded the show four light years away.

[Alfonso Sontari]

Er, it's not that show, but ours is just as fun. Are you ready to dance, Trusty?

[Captain Trusty]

Sure. Who doesn't like Dancing with the Stars?

[Alfonso Sontari]

I'm loving the attitude. And best of all, you'll get to learn all about stars.

[Captain Trusty]

Great, because I've always wondered how stars keep burning, what makes them twinkle, and why some of them explode. It's time for another big whiff of science on who's Smarted who's smarted?

[Number One]

Who's smart? Is it you? Is it me? Is it science or history? Listen up, everyone.

[Captain Trusty]

We make smarting lots of fun.

[Number One]

But who's smarted?

[Captain Trusty]

Hey, smarty pants. Trusty here with a special mission for all the smarty pants listening. But unlike a top secret mission, this mission requires you to tell everyone. That's right. Your job is to spread the word about who's smarted so we can keep growing and bringing you awesome new episodes. To qualify for this mission, let's play a little game. Who do you know that would love who smarted but doesn't listen to the show? Is it A, a friend, B, a teacher, C, a relative, like your favorite cousin? Or D, a neighbor who loves fun facts? Got someone in mind? Great. Question 2. Where and when will you tell this person about who's smarted? Is it A, on a playdate, B, at school, C, in the car, or D on the phone? Pick one, make a plan, stick to it, and best of all, complete this not so top secret mission. I'm counting on you, smartypants. The more people you tell, the bigger we grow. Which means a lot more smarting for you. Hey, smarty pants, you're in luck. My first officer number one and I, we're coasting through the cosmos. But we came across a familiarly named game show where we get to dance with stars.

[Number One]

Ooh, I wonder what celebrities we're going to meet.

[Alfonso Sontari]

Oh, celebrities, as in movie, music, sports or TV stars? Oh, no, no, no. You won't be meeting those kind of stars. Oh, we've got much, much bigger and better actual stars. Meet Alpha Centauri A. Also known as Rigel Kentaurus. Alpha Centauri A and its sister star revolve around each other in a sort of dance.

[Number One]

Dance?

[Alfonso Sontari]

Exactly. For bonus points, can you guess its sister star's name?

[Captain Trusty]

Uh, smarty pants, do you know, wouldn't.

[Number One]

It just be Alpha Centauri B?

[Alfonso Sontari]

Its name is Toliman.

[Number One]

Whoops. Sorry, Captain, I just thought.

[Alfonso Sontari]

Which is just another name for Alpha Centauri B. Well done, number One.

[Captain Trusty]

Woohoo.

[Number One]

I got it.

[Captain Trusty]

Nice going, Number one. But don't get cocky. Also, is everybody named Centauri around here?

[Alfonso Sontari]

Ours is Centaurus, named after an ancient Greek mythological creature, the centaur.

[Captain Trusty]

Smarty pants, do you know what a centaur is? Is it a half monkey, half penguin, half cat, half octopus? Meow. Or half man, half horse? If you said sea, you're right.

[Alfonso Sontari]

Well done, smarty pants. But that's just a warm up. Starting now, I'm Going to ask you questions. Get em wrong, and you gotta dance with the stars.

[Captain Trusty]

Who, me?

[Alfonso Sontari]

Yep, you and your number one. And anyone listening?

[Captain Trusty]

Ooh, that sounds fun. Get ready to dance, smarty pants.

[Number One]

Captain, what about smarty pants listening in cars, right? Or on planes, trains, roller coasters, the toilet.

[Captain Trusty]

Yes, I get your point. Number one, smarty pants, if you can't get up and dance, just move to the beat in your seat.

[Alfonso Sontari]

All right, first question. Where are stars formed? Is it A, A nebula, B, an asteroid belt, or C, Hollywood?

[Captain Trusty]

Okay, smarty pants, we did a who Smarted episode on this. Go ahead and shout out your answers. I heard some of you say it. If you said A nebulae, you're right. And if you didn't remember or didn't hear our nebula episode. A nebula is a giant cloud of dust and gas.

[Alfonso Sontari]

And speaking of gas, what's the name of the simple gas that forms stars? A, helium, B, nitrogen, or C, hydrogen?

[Captain Trusty]

Well, as the nebula gas moves around and clumps together, gravity builds. And over millions of years, gravity's force on that gas causes their tiniest parts, called atoms, to be squeezed together through a process called nuclear fusion. This gives off a lot of heat, energy, light and helium gas. So helium is not the answer. The simpler gas that's converted into helium is C. Hydrogen.

[Alfonso Sontari]

Hydrogen is correct. And the giant balls of gas formed from nebulae are what we call stars.

[Captain Trusty]

Number one, was that you?

[Number One]

Sorry, Captain, it's baked bean burrito day in the cafeteria. I shouldn't have had that second one.

[Alfonso Sontari]

Okay, moving on. Let's talk about one of your dance partners. Alpha Centauri A. Is Alpha Centauri A bigger, smaller, or the same size as your own son?

[Captain Trusty]

Mmm, smarty pants, what do you think? Here's a hint. Alpha Centauri A has been called the sun's twin.

[Number One]

So in that case, are they the same?

[Alfonso Sontari]

Oh, no. I'm sorry. Sorry. While Alpha Centauri A and the sun are similar in age, brightness and size, Alpha Centauri A is slightly bigger. So with that wrong answer, it's time to dance with the stars. Okay, that's enough of that. Next question. True or false? Stars twinkle, but planets do not.

[Captain Trusty]

Ooh, I know this. Go ahead, smarty pants, call it out with me. 3. 3. 2. 1. True.

[Alfonso Sontari]

Correct. Another true or false? You can see the stars twinkle in space.

[Captain Trusty]

Oh. What do you think, smarty pants? This one isn't so easy. I think it's a trick, so I'm gonna say false.

[Alfonso Sontari]

Correct.

[Captain Trusty]

Smarty pants. Do you know why you see Stars twinkle in the sky, but not out in space. It has to do with the Earth's atmosphere. As our air moves around, the light traveling through it from a distant star bends and twists out of shape. When the light finally reaches your eye, it appears to be twinkling. But since there's no atmosphere in space, you'd see the light directly without twinkling.

[Number One]

But why don't planets twinkle?

[Captain Trusty]

Great question. Any ideas, smarties? The reason planets don't twinkle is because the light of planets reflected from the sun is much stronger. Because the planets are much closer to us than the stars. The atmosphere still affects that light, but it's hardly noticeable.

[Alfonso Sontari]

Whoa. Well said, trusty. Okay, here comes your next question. Every star you earthlings see at night is brighter and larger than your sun.

[Captain Trusty]

Hmm, that's an interesting question. What do you think, smarty pants? After all, the sun is so big and bright. I think we ought to think about it over this quick break and a word from our sponsors. Have you ever had that moment where your kiddo looks up at you from the kitchen table, frustrated, stuck on their homework, and you want so badly to help them, but you just can't? Not because you don't care, but because square school is different now. Math looks like a foreign language, the grammar rules have changed. Not to mention you're juggling five other things and dinner is burning. Every parent I know has been here. That's why I want to tell you about something that can make your life easier. Ixl. It's an online learning program that helps your child with math, English, science, and social studies from Pre K to 12th grade. But while that would be enough, what makes it extra special is how it adapts to your child. It figures out what they need and guides them gently toward mastery. And Just like WhoSmarted, IXL makes learning fun, your kids get instant feedback and even earn rewards. So if you're trying to set your child up for success, then set them up with ixl. It works and it's fun. And now Whosmarted listeners get 20% off when you sign up [e-mail] that's ixl.com smarted 20% off so you can get the most effective learning program out there at the best price and be the helpful parent that you were meant to be. Okay, let's be honest. Life is a lot right now. Between school drop offs, back to back meetings, half folded laundry, and texts you forgot to reply to, who has time to launch that business idea that's been living in your notes? Apple since 2021. Especially with that one thing standing between you and finally getting your business out into the world. A website. That part always feels like a brick wall. You want it to look professional. You want it to work. And you don't want to spend a lot of money on it. That's why I'm telling you, use Squarespace. With Squarespace, it's as easy as Tell it what your idea is. Pick a style you love. Boom. Website. They've got tools for selling, scheduling, newsletters, online stores, all of it. And it looks beautiful, and it works perfectly. And the whole thing happens in minutes. In the middle of your real, messy, overloaded life three months from now. Don't let the reason you still haven't launched your business be. But the website. I built my first Squarespace site in less than a half hour. This is the sign. For you to build yours, go to squarespace.com smarted and use code smarted for a free trial and 10% off your first purchase of a website or domain. Need more time? You just need the right tool. That's Squarespace. Prepare for launch.

[Alfonso Sontari]

Ready? Everybody ready? Okay.

[Captain Trusty]

Get ready to fly.

[Alfonso Sontari]

So that's how my family started our Christmas vacation in the South Pacific. Not exactly the way mom and dad planned it.

[Captain Trusty]

GZM Shows presents Hidden island an original audio adventure for the whole family. Search for imagination amplified. Hidden island to hear more. Mom, dad, this island. It's not on the map. Now back to who smarted? Okay, smarty pants. We were just asked the following true or false question. Are the stars you see in the night sky bigger and brighter than the sun? What do you think?

[Number One]

Captain, if I may? We know the sun is very big and very bright. I'm gonna go with false.

[Alfonso Sontari]

So sorry. The sun is so bright because it's so close. But if it were as far away as the other stars, even Alpha Centauri, you might not see it at all. The stars you see at night are indeed bigger and brighter. That means it's time to dance with the stars.

[Captain Trusty]

How much more? I'm getting exhausted here.

[Number One]

Same.

[Alfonso Sontari]

Okay, okay, that's enough.

[Captain Trusty]

Thanks.

[Alfonso Sontari]

You're welcome. Next question. There are three stars in the Alpha Centauri system. Alpha A, which is yellow. Alpha B, which is orange. And the star which orbits around the pair Proxima Centauri, which is red. Based on their colors, which star is the hottest?

[Captain Trusty]

Smartypants, what's your guess?

[Number One]

Come on. Red has to mean hotter, right? It's gotta be red.

[Alfonso Sontari]

No. I'm sorry. When it comes to stars, blue stars are the hottest. Yellows are Cooler. Orange is cooler than that. And reds are the coolest.

[Number One]

Oof. I am not good at this game.

[Captain Trusty]

I might have to stop calling you number one.

[Alfonso Sontari]

Ah, don't feel bad if you didn't get that right. For one thing, just because we say red stars are the coolest, by no means should you think of them as frosty. Proxima Centauri may be much cooler than your sun, but it's still over 5,000 degrees Fahrenheit, or nearly 3,000 degrees Celsius. That's pretty hot. Hot, hot. That's pretty hot. Hot, hot. Blue stars are about 13 times hotter. So your answer is incorrect.

[Captain Trusty]

But that wasn't my answer.

[Alfonso Sontari]

Everybody dance with the stars.

[Captain Trusty]

I can't do this much longer.

[Number One]

Same here. It's activating the bean burrito.

[Captain Trusty]

Please make it stop.

[Alfonso Sontari]

Okay, next question.

[Captain Trusty]

Wait, there's more.

[Alfonso Sontari]

After burning for billions of years, a star runs out of hydrogen to convert to helium, and its inner core collapses. What happens next? A, the star puffs outward, eventually fading away into a nebula. B, the star creates a massive explosion called a supernova, leaving a black hole. Or C, the star moves to a retirement community and gets occasional lifetime achievement awards.

[Captain Trusty]

Uh, what do you think, smarty pants?

[Number One]

I don't even want to take a guess.

[Captain Trusty]

Oh, don't be such a chicken. However, I'm wondering if there might be more than one answer. I'm gonna go with A and B.

[Alfonso Sontari]

That's correct. Lower mass stars, like your sun, will puff out and fade, while in higher mass stars, nuclear fusion keeps going, creating heavier elements and energy, throwing everything out of whack, causing a huge explosion.

[Number One]

Well done, Captain.

[Captain Trusty]

Thank you, thank you. And great job to any smarty pants who got even one of those answers correct.

[Alfonso Sontari]

Yeah, okay, you can congratulate yourselves later. Next question. How many stars are there?

[Captain Trusty]

Aha. I said that at the beginning of the episode. Two to three thousand. Oh, no, wait. I misunderstood the question.

[Alfonso Sontari]

Yep. I meant all stars, not just the ones you can see. Astronomers say there could be up to one septillion stars.

[Captain Trusty]

Smartypants, if 100 is 1, followed by 2 zeros, and 1000 has 3 zeros, and 1 million has 6 zeros, how many zeros are in one septillion? The answer is 24.

[Alfonso Sontari]

That's a whole lot of stars. Now dance. Psst.

[Captain Trusty]

Number One.

[Number One]

Yes, Captain?

[Captain Trusty]

Get us out of here. Warp speed.

[Number One]

Aye, Captain.

[Captain Trusty]

We'll be back. Until then, I'll keep my feet on the ground and keep reaching for the stars. A big shout out to my smarty pal, Callaway. In Iowa. Thanks for emailing us to say that WhoSmarted is the best podcast ever. And a big thanks to your smarty family for subscribing to WhoSmarted. Plus, we're so glad you love laughing and learning with me and all your friends on who Smarted. This episode Stars was written by Dave Beetlejuice Beaudry and voiced by Jonathan Raijul Ragheer, Adam Dogstar Davis and Jerry Colbert. Technical direction and sound design by Josh Albert and Hahn. Our Associate producer is Max Vy Canis Majoris Kamasky. The theme song is by Brian Sirius Suarez with lyrics written and performed by Adam Tex Davis. Who Smarted was created and produced by Adam Tex Davis and Jerry Colbert. This has been an Atomic Entertainment production.