Unveiling the Hubble Constant: A New Approach with Blue Supernovae

SNe Ia are used as standard candles for measuring distances in the universe, but dust in galaxies can cause their light to appear dimmer, leading to errors in calculations like the Hubble constant (H₀). Gall and her team suggest focusing on blue SNe Ia, which are less affected by dust and therefore offer a more accurate measure of brightness. This approach helps avoid the complications of dust extinction corrections, potentially leading to a more reliable measurement of H₀.