"Webb Telescope: Unveiling the Ancient Universe's First Stars"

The James Webb Space Telescope (JWST) may be able to detect the universe's first stars, known as Population III stars, by utilizing gravitational lensing. These ancient stars formed 50 to 100 million years after the Big Bang and played a crucial role in reionizing the universe during the Epoch of Reionization. If successful, the JWST will provide observational evidence for this early period in the universe's history and shed light on the formation of supermassive black holes and the creation of metals. However, identifying these metal-poor stars spectroscopically is challenging due to factors such as binary pairs and surrounding nebulous hydrogen.