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  • Brain Candy TV

  • Hey Brainiacs, do you know the names of all of the

  • planets in our solar system?

  • There are 8 planets in our solar system.

  • All of the planets orbit around the sun,

  • including our planet Earth.

  • Let's join Lizzy on the Planets Train to learn

  • a bit about each planet.

  • The closest planet to the Sun is Mercury.

  • It's very small and mostly made of rock.

  • Daytime on Mercury is really hot but the nights are

  • super cold, giving Mercury the biggest temperature

  • range of all of the planets.

  • The second planet from the sun is Venus.

  • Unlike Mercury, it's covered in a thick layer of

  • clouds and it's the hottest planet in our solar system.

  • The surface of Venus is so hot that it could cook

  • a whole pizza in only 3-7 seconds!

  • The third planet from the sun is Earth, the one we

  • call home. It's the only planet we know of that

  • contains life but scientists are constantly looking

  • for signs of life on other planets and even some moons.

  • The next planet is Mars. It's about half the size

  • of the Earth and the next place we're likely to

  • send astronauts to visit.

  • Scientists are hoping to send people to Mars in about 20 years.

  • Next up is the gas giant, Jupiter! It's the biggest

  • planet in our solar system and it's so big, you could

  • fit around 1300 Earths inside of it!

  • Saturn is the second largest gas giant planet and it

  • has a beautiful ring system around it. These rings

  • are made up of millions of chunks of rock and ice.

  • The seventh planet is Uranus and it has a smaller ring

  • system. Scientists think it may have been hit by an

  • Earth-sized planet a long time ago which might be why

  • it's the only planet tilted on its side.

  • The eighth and farthest planet from the sun is Neptune.

  • It's the coldest planet because it's so far from the sun.

  • It's also the windiest planet with winds up to

  • 1300 miles per hour, which is almost 10 times as

  • strong as the most powerful hurricanes on Earth!

  • And those are the 8 planets of our solar system, but

  • there is one more object that we need to talk about.

  • Pluto used to be the 9th planet but now it's called a

  • dwarf planet because it's so small (even smaller

  • than Earth's moon).

  • We just got our first high quality photos of Pluto

  • in the summer of 2015 when we sent a space craft to

  • fly close by. And we'll be learning a lot more about

  • it over the next year as we get more data from the

  • New Horizons probe.

  • There is a big difference in the sizes of the planets!

  • Let's take a look at all 8 planets, plus Pluto, in

  • their actual scales next to each other.

  • There's tiny Mercury

  • Hot and cloudy Venus

  • Earth and its Moon

  • Dusty Mars

  • Woah! And there's gigantic Jupiter!

  • Saturn with all of its rings

  • Uranus and Neptune

  • And there's little bitty dwarf planet Pluto.

  • But of course, all of these planets are tiny when

  • compared to the size of the sun!

  • We've learned a lot about the planets over the last

  • 100 years but we're learning more every day

  • and there's still a lot left to explore.

  • Who knows, maybe one of you will get to visit one of

  • these planets one day!

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  • Thanks for watching, Brainiacs, and see you next time!

Brain Candy TV

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