In 1979, natural scientist and nanotechnology scholar Robert Freytas Jr. thought that life was possible, not biology. He explained that the possible metabolism of the biological system is based on four fundamental forces: electromagnetism, strong nuclear interactions (or quantum chromodynamics), weak nuclear interactions, and gravity. Electromagnetic life is the normal biological life we ​​have on Earth. Chromodynamic life may rely on strong nuclear interactions, which are considered to be the strongest of the fundamental forces, but only at very short distances. Freitas hypothesized that such an environment could be possible with a neutron star, a heavy rotating object with a diameter of 10-20 km with a star mass. With incredible density, the strongest magnetic field, and 100 billion times the gravity of Earth, such a star has a core with a three-kilometer crystalline iron crust. Below that is an incredibly hot neutron, a variety of nuclear particles, protons, nuclei, and a sea of ​​"small nuclei" rich in neutrons. These micronuclei could theoretically produce Sverkhjyadr as large as organic molecules, and neutrons act as equivalent water in a failed pseudobiological system. Freitas thought that weak forces acted only in the intranuclear region and were not particularly strong, so life forms based on weak nuclear interactions are unlikely. Careful control of weak interactions, as often shown by radioactive beta decay and free neutron decay, can lead to the presence of weakly interacting organisms in the environment. Freitas supplied excess neutrons to the existence of atoms. Neutrons become radioactive when they die. He also assumed that there are areas of the universe with weak nuclear forces and therefore the likelihood of such life appearing. Since gravity is the most widespread and effective fundamental force in the universe, the existence of gravity may also exist. Such beings can gain energy from gravity and receive unlimited nutrition from the impact of black holes, galaxies, and other celestial bodies. It is not due to the rotation of the planet. Minimal-from fall, wind, tributaries, ocean currents, and perhaps seismic energy.

The surface temperature of the sun is about 5500 degrees Celsius (9941 degrees Fahrenheit), so if you plan to visit, pack plenty of sunscreen (forget that the average distance from the sun to the earth is about 150 million kilometers). Please do not). The sun produces large amounts of energy by binding hydrogen nuclei to helium. This process is called fusion. Many early cultures regarded the sun as a god or a god because the sun has a great impact on the earth. For example, the ancient Egyptians had a sun god named Ra, while Aztec mythology has a sun god named Tonatiuh. The sun creates a solar wind that contains charged particles such as electrons and protons. Due to their high kinetic energy and the high temperatures of the Sun's corona (a type of plasma atmosphere that expands into space), they escape the strong gravity of the Sun. Planets with strong magnetic fields, such as the Earth, can deflect most of these charged particles as they approach. A solar eclipse occurs when the moon is between the sun and the earth.

A star is a huge, bright sphere of very hot gas called plasma, which is bound by its own gravity. Stars radiate the energy produced by nuclear fusion. Nuclear fusion is a process that occurs in the core of a star where hydrogen fuses (burns) with helium. As the star nears its end of life, helium begins to convert to heavier chemical elements such as carbon and oxygen, and the color, density, mass, and size of the star begin to change. The closest star to Earth is the Sun, which is classified as a G2 yellow dwarf. After the Sun in our solar system, the closest star to Earth is Proxima Centauri. It's about 39.9 trillion kilometers or 4.2 light-years away. This means that it will take 4.2 years for the light from this star to reach Earth. With the latest and fastest spacecraft propulsion system, it will still take about 75,000 years to get there. Our Milky Way alone has about 200-400 billion stars. Each galaxy contains hundreds of billions of stars, and it is estimated that there are over 100 billion galaxies in the universe. So the total number of stars in the universe is amazing, estimated to be at least 70 trillion, and in some cases 300 trillion, which is 300,000,000,000,000,000,000,000,000 !!!!!