Galaxy

Universe Timeline

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The cosmos offers a story stretching from the Big Bang to the enigmatic forces shaping its future. This journey reveals the fundamental processes that have crafted the universe as we perceive it today, from the formation of stars and galaxies to the roles of dark matter and dark energy. The […]

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Galaxy

Galaxy Size Analysis

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Galaxy Size Distribution The Sloan Digital Sky Survey (SDSS) has revealed approximately 140,000 galaxies in various shapes and sizes. Late-type galaxies, such as spirals, have a characteristic brightness of M_r,0 ≈ -20.5, corresponding to a stellar mass of about 1010.6 solar masses. Less massive galaxies exhibit greater brightness variability (about […]

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Galaxy

Dark Matter in the Universe

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The Nature of Dark Matter Dark matter, an invisible component of our universe, exerts a profound gravitational influence despite its imperceptibility. It doesn't interact with light or energy, making it undetectable by conventional astronomical tools. However, its gravitational effects are undeniable. Scientists have proposed several explanations for dark matter's nature: […]

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Galaxy

Milky Way Star Count

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Galactic Structure and Star Distribution The Milky Way, our home galaxy, extends approximately 100,000 light-years in diameter and features a complex structure comprised of a central bulge, four major arms, and supplementary minor arms such as the Orion-Cygnus Arm, which harbors our sun. The galaxy's bulge, approximately 10,000 light-years across, […]

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Galaxy

Understanding Supernova Types

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Supernovas are amazing natural phenomena that captivate our attention. They are catastrophic, brilliant explosions of stars that outshine the brightness of their host galaxy. These fireworks from space can last for weeks or even months, making a lasting impression on the cosmos. Supernovae are among the most remarkable phenomena in […]

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