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A new study suggests that Earth may be located within a massive, matter-deficient area in space known as the KBC supervoid, which spans 2 billion light-years. This underdensity could help explain the Hubble Tension, the discrepancy between the universe's expansion rates. Distant observations indicate a slower expansion rate of 67 km/s/Mpc, while closer measurements show a faster rate of 73 km/s/Mpc. Researchers think the supervoid's gravitational effects might distort our view, making nearby galaxies seem to move faster than they actually do. Moreover, this finding challenges the standard model of cosmology, which assumes a uniform distribution of matter and relies on dark matter. Instead, it aligns more closely with Modified Newtonian Dynamics (MOND), an alternative theory that adjusts gravity laws. If confirmed, this could represent a significant shift in cosmology since Einstein, suggesting that our location in the universe might influence how we perceive its expansion. Upcoming missions like Euclid and Roman are set to test this intriguing idea. **Research Paper:** Sergij Mazurenko et al., “A simultaneous solution to the Hubble tension and observed bulk flow within 250 h⁻¹ Mpc,” MNRAS (2023)