The term “Universe” refers to all of space-time and everything it contains, including all matter, energy, planets, stars, galaxies, and the fundamental forces of nature. It encompasses the totality of existence as observed from Earth, extending to the farthest reaches of the cosmos. The Universe is often described as having begun with the Big Bang, approximately 13.8 billion years ago, leading to its ongoing expansion. While the observable Universe is limited to what can be seen or measured, the entirety of the Universe may extend far beyond this observable part. The study of the Universe and its components falls within the realm of cosmology, which seeks to understand its origin, evolution, and eventual fate. Terms associated with the Universe include concepts such as dark matter, dark energy, and cosmic microwave background radiation, all relevant to understanding its large-scale structure and dynamics. The Universe remains one of the most profound subjects of inquiry in both science and philosophy, provoking questions about existence, the nature of reality, and humanity’s place within it.
The Most Metal-Poor Supernova Ever Observed In a groundbreaking astronomical revelation, scientists have uncovered a rare supernova, designated 2023ufx, in a dwarf galaxy. This event marks the most metal-poor stellar…