Astronomers have made a groundbreaking discovery using the James Webb Space Telescope (JWST), identifying a stellar bar in the galaxy GN20, which existed just 1.5 billion years after the Big Bang. Stellar bars, typically formed over billions of years, are elongated structures that funnel gas towards a galaxy's nucleus, facilitating star formation and feeding supermassive black holes. The finding challenges conventional theories, which posit that gas-rich environments inhibit bar formation. The analysis revealed a bar structure extending seven kiloparsecs, confirmed by both light analysis and dust mapping from the NOrthern Extended Millimeter Array (NOEMA). The research indicates that turbulent gas within GN20's inner disk allows for rapid bar formation, leading to a remarkable star formation rate of over 1,000 solar masses per year. This may explain how massive elliptical galaxies in the present universe ceased star formation early in their evolution, linking the presence of stellar bars to the lifecycle of galaxies. Despite some uncertainties regarding stellar mass estimation due to dust interference, the main conclusion remains intact: GN20 is a gas-rich galaxy with a genuine stellar bar.