
An asteroid is a rocky body that orbits Sun and is primarily found in the region known as the asteroid belt, located between the orbits of Mars and Jupiter. These sky bodies are remnants from the early solar system, formed about 4.5 billion years ago during the formation of the planets. Unlike planets, asteroids are much smaller, irregularly shaped and lack atmospheres. Their sizes range from a few meters to hundreds of kilometers, and the largest asteroid, Ceres, is also classified as a dwarf p
ENFatih Birinci

Dwarf planets are celestial bodies that orbit the Sun, possess sufficient mass for their self-gravity to overcome rigid body forces so that they assume a nearly spherical shape, but have not cleared their orbital paths of other objects of comparable size. The key distinction between traditional planets and dwarf planets is the orbital clearance criterion established by the International Astronomical Union (IAU) in 2006.【1】 According to this definition, dwarf planets must orbit a star, have suffi
ENSudenur Selki

The Sun is the source of everything on Earth. Our light, our heat, our seasons—all are made possible by the Sun’s steady luminosity. But a major question arises in the mind: What happens when the Sun one day dies?First, it is essential to understand:The Sun is not a star capable of exploding like a supernova. The reason is its relatively small mass. Supernova explosions occur only in massive stars with at least eight to ten times the mass of the Sun. Therefore, the Sun’s fate is not to explode,
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HD 219134 b (HR 8832 b) is a super-Earth located just 21.25 light years from Earth in the direction of the Cassiopeia constellation. This planet is one of the closest known transiting exoplanets. It orbits a K-type star named HD 219134.The high-precision measurement of both its mass and radius has made HD 219134 b an important reference point for scientific studies on the densities and internal structures of rocky exoplanets. Based on the obtained data, its dense structure suggests that it likel
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Erhan Şencan

Planets were once described as “wandering points of light” in the sky. At that time, people believed Earth was at the center of the universe. But as science advanced, telescopes were invented and astronomers made new discoveries. We now know that planets orbit a star, can vary in shape and size, and each moves along its own unique orbit.So why is a celestial body classified as a “planet”? Scientists spent years observing the sky to find the answer. Now I will share that answer with you—but don’t
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Elif Laçin
PhPhotovoltaic (PV) technology is a method of generating electrical energy from sunlight. PV cells are made from semiconductor materials that directly convert sunlight into electricity. These cells are typically a few centimeters in size and each generates about 1-2 W of power. Photovoltaic cells are often coated with protective materials such as glass and plastic to safeguard them from external factors.OPERATING PRINCIPLE OF PV CELLSPV cells are stimulated by photons from sunlight, which release
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Ömer Said Aydın

Solar Apex is an astronomical term that denotes the direction of motion of the Sun System within the Milky Way Galaxy. The Sun and all associated planets, galaxy are moving along a specific orbit. During this motion, the direction in which the Sun is presumed to be advancing is referred to as the Solar Apex.The Solar System is an astronomical system composed of planets, dwarf planets, moons, asteroids, comets, and other celestial bodies bound together by the gravity of the Sun. The Solar System
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Fatma Reyhan Çelik

In astronomy, the concept of time【1】 is not limited solely to the cycles of day and night or seasonal changes on World. On the scale of the Sun System, planetary motions, orbital cycles, and gravitational interactions determine many factors that define different dimensions of time.In astronomy, time is a system of measuring time based on the movements of celestial bodies and large-scale processes in the universe. Beyond daily and annual cycles on Earth, it encompasses much longer time intervals
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Oksana Gülünay

The first object identified as originating from outside the Solar System, 'Oumuamua, was discovered on 19 October 2017 by the Pan-STARRS1 telescope affiliated with the University of Hawaii. This celestial body, recorded in scientific literature as 1I/2017 U1, derives its name from the Hawaiian phrase meaning “the first distant messenger.” The object entered the Solar System on a hyperbolic trajectory and exhibited physical and dynamical characteristics simultaneously resembling those of both an
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The Solar System is a large family in space. At its center is the Sun, which we all know well. The Sun causes the planets and other celestial bodies orbiting around it to revolve in its vicinity. Just as children revolve around their mother, the Sun sits at the heart of this great family and holds the system together.The Sun: The Heart of This SystemThe Sun is a bright and extremely hot star. It is so large that one million Earths could fit inside it! By emitting heat and light, it illuminates a
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Hikmet Can Urhan