James Webb Finally Looked Into a Cosmic Void... What It Saw Shocked Scientists episode artwork

EPISODE · Sep 9, 2026 · 2H 8M

James Webb Finally Looked Into a Cosmic Void... What It Saw Shocked Scientists

from Sleep Science · host Sleep Science

One of JWST's most surprising discoveries isn't finding new galaxies—it's finding a place where they're missing. The telescope identified a real, expanding cosmic void at the center of the Abell 402 galaxy cluster, initially mistaken for dust . But this emptiness might be the work of "monster black holes" weighing 60 billion Suns, slingshotting entire stars out of existence . We might even be inside such a void ourselves: the KBC void, a 2-billion-light-year matter-poor bubble that could explain why our universe appears to expand faster than expected

Episode metadata supplied by the publisher feed · Published Sep 9, 2026

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James Webb Finally Looked Into a Cosmic Void... What It Saw Shocked Scientists

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