Invisible Sides

 The universe is the vast, all-encompassing system that includes everything that exists: all matter, energy, planets, stars, galaxies, and even the very space and time itself. It is the totality of all physical existence, encompassing all of space-time and its contents. Here's a brief overview of key components and concepts related to the universe: 1.Matter and Energy: The universe contains matter (such as stars, planets, and galaxies) and energy (such as light and radiation). According to the principle of mass-energy equivalence (E=mc^2), matter and energy are interchangeable. 2.Space-Time: Space and time are interconnected in a four-dimensional continuum known as space-time. This concept, developed by Einstein's theory of general relativity, describes how matter and energy in the universe shape the fabric of space-time. 3.Galaxies and Stars: The universe is filled with galaxies, which are massive systems containing stars, planetary systems, interstellar gas, and dark matter. ...

  A "zombie virus" typically refers to a hypothetical infectious agent that would cause individuals to exhibit zombie-like behavior, such as aggression, cannibalism, and loss of higher brain functions. In fiction, especially in movies, television shows, and literature within the horror genre, zombie viruses are often portrayed as the catalyst for apocalyptic scenarios where the infected individuals become mindless, flesh-eating creatures.

 A galaxy is a vast system of stars, stellar remnants, interstellar gas and dust, and dark matter, all bound together by gravity. They come in various shapes and sizes, ranging from relatively small dwarf galaxies to immense spiral and elliptical galaxies. Our own galaxy, the Milky Way, is a barred spiral galaxy containing billions of stars, including our Sun, and spans a diameter of about 100,000 light-years. Galaxies are the building blocks of the universe, and they can be found throughout the \ Galaxies are broadly categorized into several types based on their shapes and characteristics. The main types of galaxies are: 1.Spiral Galaxies: These galaxies have a distinctive spiral structure, with arms spiraling out from a central nucleus. The Milky Way is an example of a spiral galaxy. 2.Elliptical Galaxies: Elliptical galaxies are shaped like ellipsoids or spheres, lacking the spiral arms of spiral galaxies. They contain older stars and typically have less interstellar gas and dus...