NASA has launched the space telescope named SPHEREx into space. The telescope will map over 450 million galaxies during its planned two-year mission. Designed to understand the origins of the universe and the history of galaxies, the space telescope named SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) was successfully launched into orbit by NASA. This launch, carried out with SpaceX’s Falcon 9 rocket, has generated great excitement in the scientific community. SPHEREx will scan the sky in infrared light to investigate the expansion of the universe and trace the building blocks of life. SCIENTIFIC OBJECTIVES OF THE MISSION SPHEREx was designed to understand the early expansion of the universe. This expansion, known as “cosmic inflation,” which occurred just after the Big Bang, increased the dimensions of the universe by trillions of times. The telescope aims to shed light on the physical foundations of this phenomenon by mapping over 450 million galaxies. Additionally, by creating a 3D map of more than 100 million stars in the Milky Way, it will investigate the fundamental building blocks of life in our galaxy. SPHEREx will be able to measure the total light emissions of not only large galaxies but also small, diffuse, or distant galaxies that other telescopes cannot detect. This will provide a more comprehensive picture of all light sources in the universe. The scientific objectives of SPHEREx are not limited to understanding the history of the universe. The telescope will search for the basic building blocks of life, such as water and carbon dioxide, in interstellar gas and dust clouds within the Milky Way. These findings will help in better understanding the processes of new star and planet formations. TECHNOLOGICAL FEATURES AND OPERATING PRINCIPLE SPHEREx stands out with its advanced infrared hyperspectral imaging system developed to discover the secrets of the universe. After collecting light from the sky, the telescope uses a diffraction grating and a combination of linear variable filters to split this light into 102 detailed spectral channels thanks to its special optical design. This technology allows detailed recording of the light spectrum obtained from each pixel, enabling deep analysis of the chemical components and physical properties of stars, galaxies, and the interstellar environment. The optical system of SPHEREx is specially optimized for low-resolution but wide-scope spectral analysis. This system enables the detection of details such as chemical elements and energy distributions contained in light at each observation point. Advanced sensors and algorithms can collect data with high sensitivity even from weak light sources, allowing for the detection of subtle differences in the depths of the universe. Additionally, the telescope aims to scan the sky repeatedly during its two years in orbit to record the spectral signatures of each region along with their changing details over time. This continuous scanning process not only creates a unique spectral map covering a wide area but also provides flexible data to uncover complex processes like cosmic inflation, galaxy formation, and star evolution. The massive dataset obtained will serve as a unique resource for scientists to deeply understand the structural and chemical evolution of the universe.