![The Universe and it’s Secrets](https://sundevilscoop.org/wp-content/uploads/2023/11/alien-extraterrestrials-ufo-fans-saying-gift-womens-pique-polo-shirt.jpg)
The universe and all of space and time and its contents, including planets, stars, galaxies, etc were created of matter and energy. The Big Bang is the prevailing cosmological description of the growth of the universe.
About 13.8 billion years ago, the universe sprang into existence in an event known as the Big Bang. The early universe was incredibly hot, too hot for even atoms to exist, and remarkably dense. As the universe expanded, its temperature and density decreased. After all this happened the universe cooled, and the simplest elements formed. Gravity gradually drew matter together to form the first stars and the first galaxies. Galaxies are collected into species and clusters. The universe is intensely made up of things that cannot be seen. The stars, planets, and galaxies that can be detected make up only 4 percent of the universe, according to astronomers. The other 96 percent is made up of substances that can’t be seen or easily comprehended
You might be wondering if we are alone in the universe. It’s very unlikely that life on Earth is the only form of life that exists out there. The mere existence of intelligent life forms tells us nothing, however, unless they have the ability to make themselves known which means to manipulate radio waves and other forms of electromagnetic signaling. Observations from the ground and from space have been confirmed.
Thousands of planets beyond our solar system. Our galaxy likely holds trillions. But so far, we have no evidence of life beyond Earth. In the thousands of years humanity has been contemplating the cosmos, we are the first people to know one thing for sure.
The stars beyond our Sun are teeming with more to discover.