At first one might say that it has always been there. However, scientists have discovered that space is expanding all the time, like a balloon. Strangely it seems like all points in space move farther apart all the time. You can try drawing points on an empty balloon with a marker and then ask your dad to inflate it carefully. You will notice that the points move away from each other when the ball grows bigger.
By calculating backwards it was thought that sometimes, some 14 billion years ago, all material in the universe was one hot and dense mass. Much hotter than the sun. Then came a huge explosion which threw stuff around and at the same moment space and time were created. Little by little material got colder and began to form elements, which formed molecules which, while colliding, began little by little to form clouds, which are then condensed into stars and planets over billions of years.
People throughout history have been interested to know where we come from. In olden times, information was scarce, but in different places they created stories that are amazingly similar.
The Bible says that God created man from the dust. Similar stories have appeared at different times in other nations and religions. Some people believe that the world was created from saliva or poop of a god. African rosin believed that the world was created by the rainbow snake’s back.
Later on, a bearded scientist named Charles Darwin explored contacts between the various species and concluded that during millions of years, species adapted to their environment by natural selection and slowly spread over the different species. He called this theory to evolution.
Evolutionary theory says that all animals have evolved originally from fish. First born reptiles, such as dinosaurs. Then the birds and then mammals. Darwin said. that the man has gradually evolved from apes. Many scientists are still sharing this opinion.
Kiitos / Thank You
Palautteesi on vastaanotettu. Jos olet onnekas, Pikkumies saattaa vastata juuri sinulle.
Your question has been registered. If you are lucky, the Little Green Boy might answer your question.