No one knows who discovered stars. They have been known and observed since prehistory; however, civilizations began to chart and study them from as early as 1534 B.C. According to historians, this is the date of the earliest star chart, which was created in ancient Egypt.
Over the millennia, human understanding of stars began to evolve. At first, stars were thought to be permanent and unchangeable. In the 17th century, astronomers began to realize that stars were not unchanging as they noticed new stars appear in the sky and that they were governed by the same laws as the sun. Astronomers also learned there were different types of stars with different life spans.