Science is a method that tries to gather information about a certain subject and to understand this information. Although the aim of science is to understand nature and the universe, it still has not solved much. There are many concepts that are a part of human life, but about which information is limited. Some concepts that science cannot fully solve are as follows;
Time: Time is the time from the beginning of an event or a process to its end. Time is usually expressed in metrics such as hours, days, and years. Time is also a concept that shows how an event or a process changes over time and how it is given. Scientists still have many questions about how time works, how it passes and how it is structured. For example, it is still not fully understood whether time moves backwards or forwards. There are also many unknowns about how time will change and interact in the future.
Death: Death is defined as the end of a living thing’s life. Death is an important issue for humans. However, scientists still do not fully understand how and why death occurs. Death remains a mysterious concept for people.
Origin of the Universe: The universe is where all matter, energy, time and space reside. The origin of the universe is an important issue for humans. However, scientists do not fully understand the origin of the universe. Information about the origin of the universe is very limited.
Dream: Dreams are images that people see while asleep. Dreams reflect people’s subconscious thoughts. However, scientists still do not fully understand how dreams occur and why they occur.

Neutrinos: Neutrinos are small and not heavy particles. There are many neutrinos in our universe. However, scientists still have many questions about how neutrinos are formed and how they move. The properties of neutrinos are not fully understood. Therefore, studies are underway to learn more about neutrinos.
Gaps: Voids are the largest and most diffused areas of our universe. However, how they are formed and how they are structured is still not fully understood. Inside the voids is very little matter that lies between galaxies. But even these substances provide important clues as to how galaxies move and come together.
Formation of Thoughts: Thoughts are information and thoughts that occur in people’s brains. How thoughts are formed is an important issue for people. However, scientists still have not fully figured out how thoughts are formed. Known information about the formation of thoughts is very limited.
Quantum Mechanics: Quantum mechanics is a theory for explaining how matter and energy behave at small scales. However, many features of quantum mechanics are still not fully understood. For this reason, quantum mechanics is still being researched by scientists. For example, according to quantum mechanics theory, matter can be seen as both a particle and a wave, acting like light. However, how this behavior occurs and why it is still not fully understood.

Black Holes: They are structures that have not been fully understood and explained by scientists. Black holes have such a massive body’s density and gravitational pull that they condense to suck in all the material and not allow anything outside to escape. In addition, it is not known how the materials inside black holes behave and what kind of structure they form.
Past Universes: Past universes is a theory that explains the changes in the universe in the past and how the universe came into being. However, the accuracy of the theory of past universes has not been fully proven. For this reason, it is still being researched by scientists.
Solar system: The solar system is the structure in which our planets and the Sun are located. However, we don’t know much about how our solar system was formed and how it is structured. For example, the knowledge of planets outside our solar system is very limited, and scientists still do not know much about how these planets were formed and how they were structured.
Gravitational Waves: Gravitational waves are waves created when two stars or galaxies are pulled together. These waves are an indication of the gravitational effect that occurs when two stars or galaxies are pulled together. However, scientists still do not know much about how gravitational waves are formed and how they are structured.

