In a discovery that has astonished the scientific community, researchers have recently revealed what is believed to be the oldest star atlas in history, credited to the ancient Greek astronomer Hipparchus, who lived over two thousand years ago. The manuscript, known as the 'Codex Climaci Rescriptus', had been hidden beneath six layers of religious writings on parchment, rendering it unreadable for centuries. Using advanced X-ray techniques at Stanford University's Linac Coherent Light Source, scientists were able to distinguish the original calcium-rich ink used by Hipparchus from later writings. The original texts emerged clearly on computer screens, reviving the positions of the stars as recorded by Hipparchus himself, prior to the invention of the telescope and modern astronomical devices. The ancient atlas not only serves as a list of star names but also represents an accurate record of planetary movements, estimates of star brightness, and the identification of solstices. This significant finding not only highlights the ingenuity of ancient astronomy but also opens the door to deeper understanding of the astronomical knowledge possessed by civilizations over two thousand years ago.