Dark energy is supposed that dark energy – a mysterious force that causes space to grow with ever-increasing speed. This term is used by astronomers to explain the accelerating expansion of the universe. Prove this elusive force is not yet possible, but scientists believe that it is approximately 73% of the universe. Dark Matter Dark matter – the invisible mass, which is believed to be about 23% of the entire universe. Dark matter has mass, but find it does not work. Scientists say her presence, based on the gravitational force affecting ordinary matter. Researchers are extremely interested in the properties of dark matter, in particular, its temperature.
Dark energy and dark matter together constitute about 95% of the universe, while commonplace matter makes up only 5%. However, scientists have puzzled about what happened to the good half of the substance. The missing ingredient is called baryonic matter, it is composed of particles of protons and electrons that make up most of the visible matter in the universe. Some astrophysicists believe that baryonic matter can be detected between the galaxies, in the heat of hot intergalactic medium.
of massive stars When you run out of fuel, there is a massive explosion, forming a supernova. This explosion is so bright that for a moment can outshine an entire galaxy. Extensive research and modern technology have shed light on the mystery of supernova, but how explosions occur is still unknown. Scientists want to understand the mechanics of stellar explosions, as well as learn more about the processes taking place before him.
Reionization of the Universe
According to the popular theory of the Big Bang space appeared in the form of hot, dense point about 13.7 billion years ago. It is believed that the early universe was in dynamics, and about 13 billion years ago she went through so-called period of reionization. During this period, the fog of the universe consisting of hydrogen, began skipping ultraviolet light. Scientists still can not understand what caused the reionization.
Cosmic rays – a high-energy particles that come into our solar system from deep space. For astronomers, their origin is still a mystery. The most powerful cosmic rays are extremely powerful, their energy up to 100 million times greater than that of the particles obtained in artificial colliders. Scientists try to explain where the cosmic rays are generated, but so far unsuccessfully.
Our Solar System
In addition to the study of planets around other stars, astronomers are also trying to understand how our solar system came. Scientists are studying the differences in the structure of the planets around the sun in hopes of learning more about the unique features of the system. Studies on other planets led to the conclusion about the existence of certain models and patterns of celestial bodies.
The solar corona – ultrasonically sun’s outer atmosphere, its temperature can reach 6 million degrees Celsius. Physics puzzled as to how the sun warms his crown. The study indicates a relationship between the energy below the visible surface and the magnetic field of the star. But the exact mechanics is still unknown.