In the vast journey of cosmic exploration, human curiosity about the unknown has never waned. The universe, a vast space of countless galaxies, stars, planets, and other celestial bodies, has inspired our infinite reverie since ancient times.

據科學研究，宇宙誕生於約138億年前的大爆炸，從那時起，它不斷擴張，形成了今天我們所見的壯麗景象。地球，這個宇宙中微不足道的星球，卻奇跡般地孕育了豐富多彩的生命。

星系，作為宇宙的基本構成單元，猶如宇宙中的獨立王國。目前已知的星系數量已超過千億，它們形態各異，有的如旋渦般絢爛，有的呈橢圓狀穩重，還有的則顯得不規則而神秘。每個星系都擁有龐大的恆星、行星等天體群體，它們在宇宙中猶如點點繁星，璀璨奪目。

Stars, one of the most common celestial bodies in the universe, release energy, light and heat through nuclear fusion. The sun, as a star in our solar system, shines on everything on Earth. However, not all stars are as bright as the Sun, and some are small but play an integral role in the universe.

Planets orbit the star and together with the star form a galaxy. Earth, as a planet in the solar system, hosts countless lives. The planets interact with each other, affecting each other's orbits and movements, and together maintain the stability of galaxies.

Nebulae, made up of gas, dust, and dark matter, are an integral part of the universe. They are important sites for the birth and evolution of stars, such as the Orion Nebula, which is a star-forming region closer to Earth. The matter in the nebula is condensed under the action of gravity, forming celestial bodies such as stars and planets.

Dark matter and dark energy are the most mysterious existence in the universe. Dark matter does not emit light or electromagnetic radiation, but its gravitational influence on the universe is far greater than that of visible matter. Dark energy is a mysterious force that pervades the universe, contrary to gravity, driving the continuous expansion of the universe. The discovery of these two substances has greatly deepened our understanding of the universe.

The Big Bang theory, one of the most influential theories in modern astronomy, reveals the origin and evolution of the universe. The theory is that the universe originated from an extremely dense point – the singularity. In the distant past, the singularity accumulated a lot of energy, which eventually triggered the Big Bang of the universe. Over time, the universe expands and cools, and matter begins to condense into galaxies, stars, planets, and other celestial bodies.

In 1929, American astronomer Edwin Hubble revealed the redshift phenomenon of galaxies for the first time, providing empirical evidence for the expansion of the universe. He found that in addition to the Milky Way, other galaxies are moving away from us and moving at a speed proportional to the distance. This discovery challenged the notion that the universe was static at the time and provided strong support for the Big Bang theory.

There are many opinions in the scientific community about the world beyond the universe. One view is that there may be other universes outside of the universe that have different laws of physics and a different structure of time and space than we do. The multiverse theory and the parallel universe theory are all discussions and speculations on this viewpoint.

Another speculation is that there may be dark matter outside the universe. Although this mysterious substance cannot be directly observed, its gravitational pull has a significant effect on the movement of galaxies. Scientists have found evidence of the existence of dark matter through experiments such as observing the movement of galaxies and gravitational lensing.

The theory of parallel universes has attracted much attention in recent years, revealing an amazing multidimensional space-time world for us. According to this theory, our universe is just one of an infinite number of universes that are distributed in different dimensions and may have different physical constants, spatial dimensions, and material distributions.

Dark matter, the invisible man in this universe, although we can't see it directly, it affects our lives all the time. It shapes our universe, determines the shape and size of galaxies, and also influences the formation of stars and planets. Scientists are working to demystify dark matter through a variety of experiments and observation equipment.

What exactly is beyond the universe? There is still no definitive answer to this question. But it is this unknown and mystery that fuels our endless passion for exploring the universe. With the continuous progress of science and technology, we believe that one day we will be able to unravel the mysteries beyond the universe.