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Dark matter isn’t so cold after all ⚡ экспресс

Original: "Effective dark matter component presents a robust signature of negative pressure by the DESI observations"
· Hao Xu, Xinhe Meng
arXiv:2601.01340v1 · 2026-01-04 · CC BY 4.0 · ⏱ 1 min · Cosmology
New analysis reveals: dark matter isn’t entirely passive — it has a tiny negative pressure.
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The universe has sprung a surprise: dark matter isn’t just invisible glue—it has a 'personality'. Data analysis reveals it gently repels itself. This might be the key to unlocking its nature.

🎯 Negative pressure is a minuscule self-repulsion, billions of times weaker than the gravitational pull we're used to.

🎬 Sci-fi writers have long exploited negative pressure for space jumps; now it turns out dark matter itself contains this ingredient, albeit in tiny doses.

Scientists
Alan GuthAndrei LindeGeorges LemaîtreJames PeeblesAdam RiessBrian Schmidt
Tags
dark matter supernova dark energy expansion of the universe
Laws
Friedmann equationsHubble's lawgravitational lensingvirial theoremChandrasekhar limitFermi acceleration
Original: arXiv:2601.01340v1 · CC BY 4.0 · bridge42worlds