We have learned many things about space in textbooks of primary and secondary school and some people read it other space books but today we will discuss those 11 Incredible facts of Space which are not available in textbooks.

How old is the Solar System?

Our good old Solar System is actually a pretty bizarre place, what with all its out-of-this-world phenomena that we humans haven't managed to explain yet! There are rumours that a gigantic, undiscovered planet is hiding behind Neptune, volcanoes on Pluto spew ice, and a colossal canyon on Mars can accommodate the whole US territory, and most of Cleveland! Well, let's figure out if it's true by talking about the most mystifying Solar System facts. - The Solar System is 4.6 billion years old! So old, it’s a Senior Solar System.

You can’t wear Hat on Venus, Why?

Scientists came to this conclusion after they studied the oldest material they managed to get a hold of - and by that, I mean meteorites, of course. - You won't be able to wear a hat on Venus ever and try just to stand on your feet! The planet is insanely windy - its upper winds blow 50 times faster than the planet rotates. What's more, these fierce winds never stop and can even get stronger with time! - Want to get away? You'll have to travel 11 billion miles away from Earth before even leaving the Solar System. Take your Google maps with you.

You've probably heard of methane gas, a by-product of natural processes, such as volcanic activity – and cows? Anyway, this gas is not only a part of the Martian atmosphere, but also the thing that confuses astronomers to no end! The thing is that the volume of methane on Mars keeps wavering, and scientists just can't figure out where it might be coming from! Can there be cows on Mars?

The most unexpected fact about Pluto

As you may remember, Pluto used to be a planet but was stripped of this title in 2006. Later, it was reclassified as a dwarf planet. It makes up your mind! But the most unexpected fact about this celestial body is that its diameter is smaller than that of the US! See for yourself: the greatest distance across the country (from Maine to Northern California) is about 2,800 miles. As for Pluto, it's only 1,473 miles across. In fact, if you laid Pluto right down in the middle of the United States, you’d crush the heck out of Iowa, Kansas and Nebraska. Bad idea. - the Planet Uranus or Uranus – you can’t win either way -- rotates on its side, and astronomers have no idea why the planet has chosen such an unusual position.

The culprits could be ancient mega-powerful collisions; but so far, it's just a theory. By the way, this is the only planet laying on its side. - Our Sun is insanely massive! Want some proof? Well, 99.86% of all the mass in the Solar System is the mass of the Sun - in particular, the hydrogen and helium it's made of. The remaining 0.14% is mostly the mass of the Solar System's eight planets. - Earth might not be the only tectonically active planet in the Solar System. Astronomers have spotted some landforms looking like cliffs on Mercury! If it's so, the tectonic activity could explain the rapid shrinking of the planet.

What is the Mysterious Kuiper Belt?

In most sci-fi movies about space, the main character gets into an asteroid belt and must dodge countless rocks that threaten to damage their spacecraft. Sorry to disappoint, but that’s nothing like the real thing. The only asteroid belt astronomers know about is located between Mars and Jupiter. There are thousands of asteroids in this region, but they're so widely spaced that the chance of collision is next to nothing. Ah, you just ruined it! Sorry. - Behind the orbit of Neptune, lies the mysterious Kuiper Belt, filled with massive icy objects. The most curious thing about this space formation, though, is that scientists can’t explain the pattern of its movement.

The only explanation they have is that Neptune might be hiding a ginormous planet from our sight. This hypothetical planet has already got the name Planet Nine, and all we have to do is waiting until its existence is confirmed. Or not.

Volcanoes spit Ice?

Volcanoes on Earth are as different from those on Pluto as fire and ice. And I mean it! While we have volcanoes spilling lava on our planet, the volcanoes on Pluto spit... ice! When frozen, water expands, and this enormous pressure builds up until one day - bang! - the ice erupts. In the process, a new cryo volcano gets formed.

Two toned Moon Theory

One of Saturn's moons, Lapetus, has a unique color - it's two-toned. One of its hemispheres is light, and the other is eerily dark. Scientists haven't figured out this mystery yet. - There’s another weird thing about Pluto, or rather, about its atmosphere. First, it rises way higher above the surface of the dwarf planet than, for example, the Earth's atmosphere. What's more, the atmosphere on Pluto has more than 20 layers, and all of them are super cold and very condensed.

Are we living inside the Sun?

We live inside the Sun. No, I don't mean that we're the inhabitants of the red-hot ball of light approximately 93 million miles away! The thing is that the Sun's atmosphere stretches far beyond its visible surface. And our planet is right within its reach. In fact, it’s the gusts of solar wind that create the breath taking phenomenon known as the Northern and Southern lights. - The ocean on Jupiter is larger than any other on the rest of the Solar System's planets. But wait! It's not the type of ocean you’re thinking about. The one on Jupiter isn't made of water. This mesmerizing thing consists of metallic hydrogen, and its depth is a staggering 25,000 miles, which is almost the same as the circumference of the Earth!

The Sun’s Atmosphere

The Sun's atmosphere is hotter than the surface of the star. While on the surface, the temperatures reach10, 000 degrees F, and the upper atmosphere heats up to millions of degrees! Scientists suspect that explosive bursts of heat from the sun might have something to do with this unique phenomenon. - People came to know about Saturn's beautiful rings in the 1600s. But only recently, it became apparent that Saturn isn't the only ringed planet. All the giant gas planets: Uranus, Neptune and Jupiter, have rings of their own, but they’re thin and almost impossible to see. As for Mars, Venus, and Earth: they’re made of rocky materials and have no rings whatsoever. - Our Solar System isn't the only one in the Milky Way Galaxy.

What is 100 Billion Solar System?

The galaxy we live in houses about 100 billion solar systems! And if that’s just our galaxy alone, can you imagine how many are in the whole Universe? - At any given moment, here on Earth, you can stumble across a rock that's arrived from Mars. After scientists analysed the chemical content of some meteorites found in the Sahara Desert, Antarctica, and other places on our planet, they came to the shocking conclusion that they have a Martian origin. - Since Mercury is the closest planet to the Sun, many people simply assume that it's also the hottest.

And that's where they get it wrong because, in fact, Venus (which is about 30 million miles further from the Sun than Mercury) is way hotter! The thing is that Venus has an incredible thick atmosphere, which is 100 times denser than the one we have on Earth! On top of that, this atmosphere consists almost entirely of carbon dioxide, also known as a greenhouse gas. These factors make the temperatures on the planet rise to a staggering 875 degrees F, which is hot enough to melt lead. As for Mercury, their maximum temperatures reach only 800 degree F. - Jupiter’s moon, Lo, exists in never-ending chaos due to hundreds of smoking volcanoes on its surface. If you ever visit this place, send me a postcard– no -- you'll see the smoke from these volcanoes billowing up high into Lo's atmosphere.

Rocks arriving from MARS

The most enormous volcano in the whole Solar System (at least, that we know of) is on Mars! The size of this monster is almost as great as the state of Arizona, and its height is as big as that of Mount Everest! How did it grow this huge? The answer is simple – there’s much less gravity on Mars in comparison with our planet! - Even if you're a tiny celestial body, you can still have a moon of your own. (Hey, it’s not that hard…) In 1993, the Galileo probe was traveling pasta miniature asteroid that was no more than 20 miles across, and discovered that the little thing had a 1-mile-wide moon. Since then, astronomers have found tons of moons orbiting minor planets in our Solar System. - The valley called Valles Marineris, on Mars, is more than 10 times larger than Earth's Grand Canyon. And it's another thing that puzzles astronomers- after all, Mars isn't a planet with active plate tectonics!

What is Red Spot on Jupiter?

On the surface of Jupiter, there’s a weird region that's called the Great Red Spot. Recently, astronomers have concluded that this spot is actually a storm that’s been raging on the planet for centuries. But some 20 years ago, scientists noticed that the red region started to shrink. Nowadays, it's just half the size it used to be. And still, the spot is one and a half times bigger than Earth.

Do you know any other unusual facts about our Solar System that I've missed? Then let me know down in the comments! If you learned something new today, then share this article with a friend.

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