In this fulldome film, we will travel through spacetime together to unravel the secrets of the universe! The film begins with Qu Yuan's ‘Tianwen’ and then traces humanity's journey to explore the universe. We will see how spectroscopy serves as the ‘barcode scanner’ of the universe, revealing the secrets of stars; how the LAMOST telescope captures the ‘chemical genes’ of the first-generation stars from 13 billion years ago, uncovering the history of the universe's childhood; how the FAST radio telescope detects ripples in spacetime and discovers thousands of pulsars; and how the LHAASO cosmic ray observatory catches cosmic rays arriving at Earth at nearly the speed of light, solving the puzzles of high-energy events. A new era of multi-messenger astronomy and time-domain astronomy has arrived! Please enjoy an immersive journey here to see how China's cutting-edge scientific facilities are leading scientists to explore the origins and mysteries of the universe. Every mystery holds an answer, and all answers are in the process of being uncovered.