Up to now, the vast cosmic world still contains many mysteries that modern science has not yet discovered. However, given what we already know about the universe, there are quite a few facts that should surprise us. Here is a list of things like that.
15. The Sun takes a long time to complete one revolution of the Milky Way
Fact: The last time the Sun was in its current position was when dinosaurs were still on our planet.
The Earth takes 365 days to orbit the Sun, with a distance of about 93 million miles! But for the Sun to make one complete revolution around the center of the Milky Way, it would take about 225 million years.
14. Mars has a bigger mountain than Everest
Fact: You will wonder what is the actual height of this volcano? The answer is to stack 3 Everest peaks on top of each other!
This volcano has an altitude of 16 miles from the ground. Its name is Mount Olympus.
13. The number of newly discovered planets increases exponentially
Back in 1995, for the first time, scientists found an extrasolar planet with a 4-day orbit around the constellation Pegasi 51. In recent years, the number of newly discovered planets has reached up to. 1900, of which 900 planets were discovered in 2014, and the number will continue to increase in 2015.
12. A Mars-sized planet crashed into Earth billions of years ago
Scientists hypothesize that the Moon today formed from a collision between Earth and a planet the size of Mars about 4 billion years ago, about 100 million years after The solar system was formed.
So far, this hypothesis is the most reasonable explanation for the question of the formation of the Moon. Another evidence to support the above hypothesis is that the material composition of the Moon and Earth is completely similar.
11. Firestorm on Jupiter is 3 times the size of Earth
The Jupiter Firestorm is a long-lasting anticyclonic storm, located south of Jupiter's equator. The size of this storm is 3 times the size of the Earth.
These storms usually last up to 150 years, but this storm is a special case, it has lasted for hundreds of years and shows no sign of stopping!
10. Super light Plan
Fact: If we put Saturn in water, it will float.
Saturn's mass density is so small that if we put the planet in an imaginary giant water tank, it could float. Saturn's density is 0.687g/cm3 while the density of water is exactly 0.998g/cm3. Of course, that water tank must also be extremely large because Saturn's equator has a radius of up to 60268km.
9. We're on the move
Fact: We are moving through space at 530km/s.
Our galaxy called the Milky Way is spinning at 225km/s and moving through space at 305km/s. Thus, we are moving through space at a speed of 530km/s. Or in a minute we are 19,000km away from the original position. However, that is not too important because according to Einstein's theory of relativity, the speed of any object in space has no meaning.
8. The Earth is leaving its companion - the Moon
Fact: The Moon is gradually "moving away" from the Earth.
The Moon is moving away from Earth at a rate of about 3.8cm per year because of the tidal effect. As a result, the Earth is slowing down by about 2 milliseconds per day for a century. Scientists don't know the full history of the moon, but we generally accept the theory that a Mars-sized object crashed into the Earth and caused part of the Earth to split and shape become the Moon.
7. Sunlight
Fact: Light reached the Earth 30,000 years ago.
The energy in sunlight we see today originated in the core of the Sun 30,000 years ago. Sunlight travels through the dense molecules in the special state that make up the sun, and it only takes 8 minutes for them to reach Earth. The temperature in the solar core reaches 13.6 million degrees K. All the energy generated by decay in this core region must pass through many layers to reach the sun's atmosphere before being emitted into the space below. the light or kinetic energy of solar dust particles.
6. Solar wind
Fact: The sun loses up to 1 billion kilograms per second by the solar wind.
The solar wind is a stream of charged particles released from the upper surface of the Sun by the extremely high temperature of the corona around the Sun (Corona) and they have very high kinetic energy. The energy of such a particle can kill a person from a distance of 160km. But why these charged particles can accumulate such great kinetic energy has until now been a mystery to scientists.
5. Dai Hung star is not a installation
Fact: The Big Dipper is not actually a constellation but a group of stars.
Many people think that the Big Dipper is a constellation (also known as the constellation Buck - extremely important to identify the North Star) but it is actually a group of stars. A star group is a group of stars in the sky that do not belong to the official list of 88 constellations but are made up of stars that are not physically related and are very far apart. A group of stars can be made up of the stars of one or more different constellations. In the case of the Great Bear, it is made up entirely of the seven brightest stars of the constellation Ursa Major.
4. George's Star
Fact: Uranus was originally named "George's star".
When William Herschel discovered Uranus in 1781, he decided to name the planet Georgium Sidus (star of King George), in honor of King George III of England.
He explained his decision as follows: “In ancient times the names Mercury, Venus, Mars, Jupiter and Saturn were assigned to the planets after the names of heroes and saints in legends. . At the present time, we have lived in an era of modern science and philosophy, so it is not advisable to continue using the old naming scheme. Maybe continue to call the new planets Juno, Pallas or Minerva. The best approach to any historical event is to rely on its chronicle. In the future if there is a question of when the last planet of Earth has been found, the best answer is: during the reign of King George III.” However, it is customary to name the planets after gods. god prevailed, and the new planet was named Uranus, and was considered the king of all because it was the outermost planet as we knew it at the time.
Uranus was also the first planet discovered by a telescope.
3. The Earth's Moons
Fact: Earth has at least 4 moons.
This is not entirely true. In 1986, Duncan Waldron discovered an asteroid with an elliptical orbit around the sun with an evolutionary age close to that of Earth and associated with our planet. This cyclical asteroid is named Cruith after a group of ancient Scotts. Because of this unusual relationship with Earth, the asteroid is sometimes referred to as a second Earth's moon, and it took a 12.5-inch reflecting telescope to see Cruithne. Since then, at least three similar asteroids have also been discovered. These objects are also found in similar associations with other planets in the solar system as Cruith is with Earth.
2. Sun Disc and Music
Fact: The activity of the Sun's disk is the main reason why Stradivarius is famous.
Antonio Stradivari is considered the greatest violin maker. He lived in Italy during the 17th and 18th centuries. Scientists couldn't explain what made his violins so incredible, but they discovered the wood Stradivari used. To make a violin is an extremely important factor. From the 1500s to 1800s, the Earth experienced less glaciation because of increased volcanic activity and a decrease in solar activity (also known as Maunder decline). So the woods that Stradivari use to make violins are extremely hard because they grow more slowly, which contributes to the wonderful sound of violins. Maybe if he was born in a different time, his name would not have been as famous as it is today.
1. Cold welding in space
Fact: If two pieces of metal collide in space, they will stick together forever.
This may sound hard to believe, but it's true. Two pieces of raw and uncoated metal will form a single piece in space. However, this is not possible on Earth because the atmosphere has created a layer of oxidized metal covering the metal pieces. Scientists discovered this particular phenomenon thanks to an experiment so far unique to spurring a reaction called cold welding. Fortunately for us, this is not a big problem on space stations because all metal equipment is brought up from Earth.
10 interesting facts about Earth you may not know
