You could fit practically one million Earth-sized planets and also the sun isn't also that big of a star.

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byTibi Puiu

From the vantage point of a human, our civilization truly is huge. However, in the grand, cosmic plan of things, the planet is but a autumn in the solar bucket.


The sunlight is a star at the facility of the solar system, a sphere consisted of of hot plasma and also magnetic fields. Its diameter is about 1,392,000 kilometres (864,000 miles), nearly 109 times larger than the Earth, and also its fixed is 330,000 times that of the Earth. In fact, by mass, the sun renders up over 99.86% of the solar system, vice versa, gas giants like Jupiter and Saturn consist of most that the continuing to be 0.14%.

In bespeak to recognize the sheer range of the sun, it’s worth questioning the question: how countless Earth-sized planets deserve to you fit inside the sun?

Volume-wise, you can fit almost 1.3 million Earths right into the sun (1.412 x 1018km3). That’s assuming every those millions of Earths room squished in addition to no empty space in between. Yet the Earth’s form is spherical not a cube, therefore only around 960,000 Earths would fit inside the volume that the sun.

Here’s just how it would look prefer (approximately) if the planet was a tiny blue marble:

One million Earths: A visual representation of how plenty of Earths can fit within the sunlight

— Mike Whitmore (

The sunlight is simply an average-sized star, though. Because that instance, the red huge Betelgeuse has a radius 936 times the of the sun, making the billions of times larger in volume than the Earth.

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And that’s nothing. VY Canis Majoris is thought to have between 1,800 and 2,100 times the radius of the sun. Therefore, you could fit dozens that billions the Earths in few of the largest stars in the universe.

This illustration reflects the approximate size of the planets loved one to every other.Credit: Wikimedia Commons / NASA/ A. Simon.

Earth is neither the largest nor the smallest earth in the solar system. Mercury (0.055 times Earth’s volume), Venus (0.85 time Eath’s volume), and also Mars (0.151 times Earth’s volume) room all smaller than Earth. It would certainly take 17.45 million Mercury-sized planets, 1.12 million Venus-sized planets, and 6.3 million Mars-sized planets to to fill the sun, gaps not included.

On the opposite end, you can fit 726 Jupiter-sized planets (1,321 time the volume that Earth) and 1,256 Saturn-sized planets (764 times the volume the Earth) inside a hollow sun, gaps not included.

In the future, you might cram even an ext Earths or Jupiters into the sun. As it drags closer to the end of that lifecycle, the sunlight gets both hotter and also larger together it continues to fuse hydrogen right into helium at its core. Once it runs the end of fuel, the core will collapse and also heat increase ferociously, bring about the sun’s external layers to expand.

By astronomers’ calculations, the sunlight is already 20% bigger than at the time of that formation around five billion year ago. In one more five exchange rate years, once it will certainly reach its helium-burning phase, the sun will turn into a red giant. It will be so huge at this time the it will completely engulf the planets Mercury, Venus, and also perhaps even Earth.


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Tibi Puiu

Tibi is a scientific research journalist and co-founder that ZME Science. The writes mainly about emerging tech, physics, climate, and also space. In his preventive time, Tibi likes to do weird music top top his computer and groom felines.