The strange phenomena in Tunguska, Siberia (Russia), the temperature at the poles of the Sun is not equal, and the tilt of Uranus so far are still unsolved mysteries.
Why is the Sun's the South Pole colder than at the North Pole?
The Ulysses spacecraft, the first ship to study the Sun not only from the plane of the ecliptic (the equator) but also from the poles of the Sun, was successfully launched into space in 1990. working for more than 17 years and has transmitted to Earth valuable information about the Sun such as the wind of the Sun and about the poles.
Among the research results, people discovered an interesting phenomenon, that is, the South pole of the Sun is colder than the North pole. The temperature at the Sun's south pole is about 44,000 degrees Celsius, 8% colder than at the north pole.
With the help of a ship-mounted SWICS spectrometer, the scientists analyzed the components that make up the Sun's wind and discovered that it was the relative concentration of oxygen ions that was disrupted. The temperature of the gas is further generated, and 300 million km from the Sun is considered a safe distance for Ulysses.
More surprisingly, the difference in temperature at the poles is independent of the Sun's magnetic field (even over the Sun's 11-year cycle, the difference between its poles remains unchanged). Physicists say the structure of the "atmosphere" over the Sun's poles is different, but this issue is still being explored.
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| The temperatures at the poles of the Sun are not equal. Source: Wikipedia. |
The Secret of Mars
Why are the Northern and Southern hemispheres of Mars so different?
On the surface of the southern hemisphere of Mars, craters grow closely, but in the northern hemisphere, only a few craters are seen and most are large volcanic plains.
Many theories have been put forward to explain this strange phenomenon, including the theory that the reason for such a large difference in the hemispheres on Mars is due to the collision between Mars and Mars. with an asteroid the size of Pluto.
However, another theory explains that during the early geological period, the lithospheric plates (the hardest outermost shells of terrestrial planets) accidentally "met" in a hemisphere and then “stuck together” in the same place.
Up to now, the debates to find the most convincing answer among scientists are still unresolved.
Is there a curse on Mars?
Something unusual happened to prevent any spacecraft from reaching Mars. Statistics show that nearly two-thirds of spaceships have disappeared when approaching this planet.
Russian rockets to send spacecraft to Mars also failed. The US satellites all broke down halfway through. The British launch devices after landing on Mars lost communication with Earth. A mysterious shadow has enveloped the entire human attempt to reach Mars.
Many people believe that the planet is protected by an arbitrary curse. However, that is probably just a human fabrication, or maybe, luck has not smiled on us in our journey to find new life.
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| Mars is also known as the red planet. Source: space. |
Strange phenomena in Tunguska, Siberia (Russia)
At about 7:00 a.m. (local time) on June 30, 1908, a giant fireball soared across the sky of Eastern Siberia between the Lena and Podkamena Tunguska regions, from the southeast to the northwest.
The fireball was so bright that its dazzling light could be seen from hundreds of miles away. Just a few seconds later, the heat quickly spread over a distance of nearly 40 km and burned everything in the area: animals, plants and even people.
An area of 2150 km² with 80 million tree species was completely destroyed. The mysterious fireball from space has turned the area with rich vegetation and rare animals of the Taiga forest into a deadly graveyard. This disaster that fell from the sky, is still the horror of mankind.
When searching for an answer to this mystery, scientists found that no volcanoes were formed around the Tunguska area, where the disaster occurred. So where did that fireball come from, did it really appear from outer space?
Some scientists believe that the explosion was caused by the detonation of natural gas contained in meteorites flying in the atmosphere, others have put forward the strange theory of a UFO explosion.
Uranus' Tilt
If other planets can be compared to spinning tops, Uranus is like a rolling sphere. Its rotation axis tilts up to 97.86°. This is what makes Uranus completely different from the rest of the planets of the solar system. Interestingly, one of its poles will remain in the dark for 42 years and the other pole will be illuminated by the Sun for 42 years.
It is known that most of the planets rotate counterclockwise (if viewed from the North pole of the Earth), except Venus which rotates clockwise. From this arises a hypothesis that: the reason why Venus rotates in the opposite direction compared to other planets is that it has collided with another planet in the universe. Most likely that collision happened to Uranus.
Atmosphere on Titan
Titan is one of the 34 moons of Saturn and the second largest moon in the solar system (after Ganymede, Jupiter's moon). In addition, this is also the only moon in the solar system with an atmosphere, and also the only satellite that cannot directly observe the surface because of its cloud cover. Titan is very similar to Earth but smaller in size.
Titan is rich in nitrogen, just like Earth's atmosphere. On Titan's face is very cold, and the landscape is rough. The temperature at the surface is -179°C and the lowest recorded temperature is -202°C. It is worth mentioning that the main component of Titan's atmosphere is nitrogen with a content of up to 95%. The question arises, where does Titan get such a large amount of nitrogen gas? This is still a mystery.
In recent years, there have been many space projects in succession to discover new things in the solar system. Many questions about the universe have found answers, but many mysteries continue to remain in the dark.