Despite the fact that science today can answer a huge number of questions that have tormented humanity for hundreds of years, almost every answer received or even a proven fact becomes just another step to the next question. And this is how a person, in search of clues to all the secrets, opens more and more horizons.
How did the universe come about?
Today scientists have information about a huge number of galaxies, black holes, gravitational waves and everything that accompanies the Universe. But there is still no answer to the question of how it was formed and what was at the very beginning.
What happens at the center of a black hole?
A black hole is a huge space object with such a powerful gravitational attraction that even photons or light quanta cannot get out of it. It is for this reason that scientists cannot even penetrate its border in order to even look inside a little. And that's not to mention the very center of space-time.
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The future of the universe
Not only is the beginning of the universe unknown to science, but also its end. Moreover, it is completely impossible to recognize even her present day. Yes, it is known that the Universe continues to expand evenly, but the period of time of this action, as well as at least approximate predictions regarding its completion, is a black hole in science. The same as in the universe.
Dark energy and matter
Scientists are confident that most of the universe is dark energy and dark matter. And if years and years of studying dark matter brought at least some groundwork and assumptions - the same gravity, then dark energy is an absolute mystery.
How did life appear on Earth?
How people appeared on planet Earth is no longer a mystery to materialistic scientists, but the very origin and origin of biological life remains a mystery. There are many assumptions and theories in the scientific world, but they never reached a single scientific consensus.
Great Egyptian pyramids
Regarding the appearance of these majestic structures, there are a variety of theories: from intervention (assistance) of extraterrestrial civilizations, to secret technologies that the pharaohs took with them to the afterlife. One way or another, but even today these structures would be a miracle of modern physics and engineering, and how they were built in the period from 2589 to 2504 BC, no one has yet said for sure.
Life outside of planet Earth
The existence of several so-called. exoplanets in the habitable zone of their stars, which are quite favorable for the formation and maintenance of microbiological life - scientists know. But the question of the existence of extraterrestrial civilizations is considered only as hypotheses, albeit massive ones.
What are the causes of cosmic radio bursts?
Fast radio bursts are small bursts of radio waves that are in the registration area of space radio telescopes from a distance of three million light years.
Existing theories about the origin of these radio bursts, from extraterrestrial civilizations to black holes and pulsars, remain theories.
Secrets of the tardigrades
Not many in their lives have even heard of eight-legged microorganisms, which are called tardigrades. Their habitat is mossy trees, but according to scientists, tardigrades are able to survive even in outer space. On earth, these organisms can live without water and at extreme temperatures.
The opinions of scientists about the origin of tardigrades are divided: some confidently declare their extraterrestrial origin, others insist that there is nothing cosmic in them. That's all the hypotheses. At the same time, it was not possible to identify the DNA of these crumbs and even to determine which type and class of creatures the tardigrades belong to. They can be both insects and arthropods.
Why are we sleeping?
It is known that the human body is regulated by circadian rhythms and sleep is one of them. At this time, the body is recovering. And people even have dreams. However, not all organisms on Earth need sleep, which raises many questions: why do we need sleep, how was the need to sleep formed, and what are the main functions of sleep? One theory shared by most experts in the field is that sleep plays a major role in the formation and maintenance of brain plasticity.
What happened to Emilia Earhart?
Emilia Earhart was the first woman to fly across the Atlantic. But during her round the world flight in July 1937, Earhart disappeared somewhere in the Pacific Ocean. The wreckage of her plane could not be found. Her disappearance remains one of the mysteries of the twentieth century. To this we can add the still undisclosed secret of the death of the Dyatlov group, the so-called. Dyatlov's first pass.
Which came first, the chicken or the egg?
Here it is - the dispute of all generations of scientists that has passed through the centuries.
British scientists, as the most prolific in the field of advancing theories, believe that since shell formation is impossible without the protein cells found in chicken ovaries, the chicken appeared before the egg. But there are other types of egg-laying species that predate the hen, so it is possible that the hen's egg evolved before the hen itself. And it is not possible to trace evolutionary adaptation.
Is there life after death?
Each of the people who said that he "died and returned", while making sure personally of the existence of life after death, in fact, did not experience death - say scientists who study all cases of clinical death.
In their opinion, the well-known things of dying, such as light, a tunnel, people around, weightlessness, and so on, are actually near-death experiences. Therefore, it is almost impossible to know for sure whether there is life after death. To do this, you need someone to come back from there and tell. But alas.
