Scientists Just Found an Even Bigger Cosmic Void

Boring Science · Jun 22, 2026 · 2h 27m · transcript

🌌 "An expanse of near-nothingness stretching a billion light-years across. And we might be living near the center of it."The Boötes Void, long known as the largest such region, spans 330 million light-years and holds only 60 galaxies where 2,000 would be expected [citation:1]. But new research suggests a much larger structure—a local void about 2 billion light-years across with a matter density roughly 20% lower than the cosmic average [citation:2]. This could explain the Hubble Tension, the discrepancy between local and distant measurements of the universe's expansion rate. The study finds…