Knowing the Hubble Tension: A Historical Perspective on Cosmic Measurements
The study by Martín López-Corredoira examines the historical underestimation of errors in Hubble constant (H0) measurements, revealing persistent tensions often misinterpreted as significant anomalies. Recalibrating probabilities, the study finds modern "Hubble tension" aligns with historical trends, driven by systematic errors and sociological groupthink. The work emphasizes cautious interpretation of discrepancies and the need to challenge dominant narratives in cosmology for a broader understanding of cosmic phenomena.
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.