Radio dipole hints Solar System may be moving through space far faster than thought
A new analysis of three radio-sky surveys finds a stronger radio dipole than predicted by the cosmic microwave background, implying the solar system’s motion could be about 828,000 km/h (515,000 mph)—roughly four times faster than standard estimates. The discrepancy could reflect either a true velocity anomaly or large-scale asymmetry in matter distribution; upcoming Square Kilometre Array observations (starting 2027) should help distinguish between these possibilities.