6 scientific mysteries that, despite being brainstormed in 2018, are still hard to get a satisfactory answer

This is said to be 6 big questions that scientists are still trying to find answers. Even so we should hope that in the future, the mystery will be decoded.

People have had amazing scientific and technological advances throughout the past century. Science helps somewhat answer the basic question - who are we, what is the world we live in?

But there are still many mysteries that still exist and no answer yet. Experts said that despite efforts, perhaps in 2018 we still cannot solve these 6 big questions.

1. Why do we need sleep?

People spend about a third of their lives sleeping. Without sleep, the nervous system is easily disturbed and as a result we will die.

Sleep helps the body recover after a day of activity.

Obviously, sleep plays an important role, it helps us maintain our ability to perceive, communicate, memory, creative thinking and flexibility. But perhaps this is the least understood behavior among our behaviors.

There have been a lot of hypotheses set, but for the most part, our sleeping needs are still a mystery without a satisfactory explanation.

According to scientists, sleep helps the body recover after an active day . They found that during sleep, some genes will be activated to perform this task.

The next hypothesis is that sleep is a necessary process to learn. Our brain has a mechanism to help eliminate unnecessary information during sleep.

In addition, to consolidate new information and link to the available information, the brain must reduce performance by going to sleep. However, there are still many cases where many people who do not sleep, or sleep very little still live a healthy way.

Although no explanation is sure enough and please all, but undeniable sleep helps the brain rest after a hard working day.

2. and why can't we see it?

We can't know what dark matter looks like when we can't see it. But the number of them is not small, as it accounts for more than 26% of the known matter in the universe.

Since the Dutch astronomer Jacobus Kapteyn hypothesized the existence of this kind of matter in 1922, we have just begun to know by how it interacts with observable matter.

Dark matter does not absorb, reflect or emit light.

But dark matter still has many mysteries for us. Most of the material that we can see is made up of neutrons, protons and electrons, but dark matter is not so. It is made up of different types of nuts that are not clearly classified; It interacts with normal light and matter in a completely different way.

Under its gravitational influence, light is bent when passing nearby - a phenomenon whereby scientists are aware of the existence of dark matter. Recently, thanks to the large particle accelerator of the European Nuclear Research Organization (CERN), scientists are working hard to find this invisible material.

By accelerating the fundamental particles and then learning about kinetic energy involved in their movement when they hit each other at high speed (near the speed of light) in this machine.

In addition, the latest research shows that gravitational wave detectors can help us see dark matter for the first time. But the truth is we are still very vague about dark matter - one of the most abundant entities in our universe.

3.

The universe consists of planets, stars, galaxies, the smallest subatomic particles and all matter and energy . The observed universe is about 91 billion light-years across at the present time. . However, its actual size is not measurable and may be infinite.

The universe consists of planets, stars, galaxies, the smallest subatomic particles and all matter and energy .

We are approaching the reconstruction of the earliest moments of the universe (in the formation of the universe), but its true origin remains a mystery. Any theory or model of cosmic formation, if any, is merely speculation until now. Perhaps the most famous theory about the beginning of the universe is the Big Bang theory , in which the universe was expanded from a particularly hot and dense point, about 13.8 billion years ago.

But people are misunderstanding here that the universe was born out of nothing by. The truth is that Big Bang is happening simultaneously and everywhere in the universe. It is not an extraterrestrial explosion but an expansion of space. However, its exact cause has not been clarified yet.

To understand the creation of the universe, we need to have a comprehensive understanding of the laws of physics that govern matter and antimatter. Once we understand the nature of antimatter and how it interacts with matter, we will not be able to get the final answer about the origin of the universe, but will get closer to understanding it. out like.

4. Where are you located?

The 9th planet is thought to exist at the outer edge of the Solar System. It caused a mysterious cluster of objects outside the Kuiper Belt and caused them to move abnormally in orbit around the Sun.

According to initial calculations, the 9th planet is 10 times heavier than Earth.

Imagine the Solar System as a giant disk. The trajectories of these strange objects seem to bend this disc upward on the side. Thus, the 9th planet needs to be large enough to cause such an effect.

According to initial calculations, the 9th planet is 10 times heavier than Earth. Despite the apparent gravity, scientists still cannot prove its existence. Partly, it's because we just started looking for it in 2014.

However, that is not the only reason this planet has yet to be discovered.

According to scientists, the ninth planet is actually quite fuzzy, so even if there are the best telescopes around it, it's hard to detect it.

In addition, these devices are not sensitive enough to use infrared analysis technology. That forces astronomers to search for light reflected from this planet. This is an even more challenging task.

However, with advances in technology, more sensitive telescopes can record light rays reflected from there, just once and forever, can confirm the existence of the 9th planet. this.

5. The phenomenon of ASMR

ASMR can be activated from a specific part of the brain.

You may have seen this phenomenon on YouTube: thousands of videos were told in a whispering voice, accompanied by a soft sound like rubbing a hand on a cloth or the leak of a hair cutting machine. With a dedicated microphone - it all makes you feel like you're there.

The result of this experience is the indescribable tingling sensation around the head and nape, involving 90% of the population. For some, the sound feels like a scalp massage.

But why does that happen, and why it doesn't work for everyone is still a mystery. There are no specific scientific studies on this phenomenon.

However, ASMR can be activated from a specific part of the brain. In addition, there are many unrelated people who describe the feeling of ASMR very similar, which proves that the phenomenon of ASMR is real and not fantasy or illusion.

6. Where are you?

Researchers believe that if extraterrestrial life exists in our Solar System.

Our universe has existed for billions of years. It is difficult to understand if we do not find signs of another intelligent life in terms of the age and scale of the universe. By probability, we were able to find extraterrestrials right now, so where are they?

Researchers believe that if extraterrestrial life exists in our Solar System, it is likely to be bacteria, instead of intelligent alien life.

These alien creatures are thought to be present on tiny, cold planets, such as Saturn or Jupiter satellites.

But even if we have found alien life, can we recognize it? Moreover, scientists have not been able to completely distinguish strange messages from noise other than space.

Also, do not exclude the case that alien life does not want us to find them. So, there hasn't been any feedback yet to tell us that they're in the universe.