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Dark Matter Signal, Dark Energy Challenged & Tsunami Physics Rewritten
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Dark Matter Signal, Dark Energy Challenged & Tsunami Physics Rewritten
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(00:01:05) Dark Energy Model Challenged
(00:02:09) SWOT Satellite Rewrites Tsunami Physics
(00:02:51) Perseverance Mars Organics Discovery
(00:03:17) Asteroid Pass, Starliner, Starlink
(00:04:06) What To Watch Next
Two of the biggest unsolved problems in cosmology collide in today's episode — and both may be closer to resolution than ever before.
Professor Tomonori Totani has identified a gamma-ray signal peaking at twenty gigaelectronvolts at the Milky Way's centre, extracted from NASA's Fermi telescope data. The signature matches theoretical predictions for dark matter particle annihilation with striking precision. The critical next test: does the same signal appear over dwarf galaxies, which are dark matter-rich but astrophysically quiet? If it does, this becomes very difficult to dismiss.
Meanwhile, researchers at the University of Canterbury are challenging dark energy itself. Their timescape model proposes that uneven time dilation across cosmic voids and dense galaxy regions creates the illusion of accelerating expansion — no exotic force required. The Euclid and Nancy Grace Roman space telescopes will need observations of over a thousand supernovae to put the model to a real test.
Elsewhere, NASA's SWOT satellite captured a 2025 Kamchatka tsunami in unprecedented detail — and revealed dispersive wave behaviour that contradicts fifty years of standard models, raising questions about coastal warning system accuracy.
On Mars, Perseverance has recorded the highest concentration of complex carbon-based organics yet found in Jezero crater's ancient lake mudstones. Not confirmation of life, but an increasingly hard-to-explain abiotic alternative.
Rounding out the episode: asteroid 1997 NC1 makes a safe but close pass Saturday, Boeing's Starliner remains grounded with no return date, and SpaceX's Falcon 9 deploys another 24 Starlink satellites from Vandenberg.
This episode includes AI-generated content.
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