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Cosmology

Investigating the origin, evolution, fundamental structure, and ultimate fate of the entire universe.

Explore by Cosmology

A photorealistic visualization of the cosmic web with glowing purple and cyan energy waves representing scalar-mediated fifth forces acting on dark matter.

August 11, 2026

Do Dark Forces Suppress Structure Growth? Scalar-Mediated Fifth Forces and the S₈ Anomaly

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The Simons Observatory at Cerro Toco featuring the Small Aperture Telescopes against a twilight desert sky.

August 10, 2026

Can the Simons Observatory Detect Inflation? SAT Data & the B-Mode Hunt

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A visualization of the cosmic web glowing with a hyperlight scalar field energy mediating dark matter interactions.

August 7, 2026

Is There a Dark Force? Scalar-Mediated Dark Matter & the S8 Tension

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Abstract rendering of the cosmic web and neutrino particles representing the CMB lensing anomaly

August 6, 2026

Can Neutrinos Have Negative Mass? DESI's 0.0642 eV Limit and the CMB Anomaly

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A high-altitude astronomical observatory in the Andes beneath a vibrant night sky visualizing cosmic microwave background anisotropies.

August 5, 2026

Decoding the Hubble Tension: CMB Anisotropy Insights from ACT DR6, DESI DR2, and Simons Observatory

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SKALA4.1 antenna on a 40-meter ground mesh in the Australian outback under a visualized radio sky.

August 4, 2026

The Radio Sky is 20% Brighter: Recalibrating GSM2016 and the 201 K Excess

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Cinematic visualization of a cosmological dipole axis cutting through a field of galaxies and nebulae

August 3, 2026

Is Cosmic Acceleration an Illusion? The 2026 Pantheon+ Deceleration Debate

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Conceptual illustration of the Lyman-alpha forest and the cosmic web illuminated by distant quasars, highlighting the Alcock-Paczynski effect.

August 2, 2026

Is the Cosmological Constant Dying? DESI DR2 & Evolving Dark Energy

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A cosmic scale balancing the early cosmic microwave background and local spiral galaxies.

August 1, 2026

Which Model Wins the H₀ World Cup? Ranking 14 Hubble Tension Solutions Against ΛCDM

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FAQs about Cosmology

Cosmology is the scientific study of the entire universe. It asks questions about how the universe began, how it has evolved, and what its ultimate fate will be.

The Big Bang Theory is our best explanation for how the universe started. It states that the universe began as an extremely hot, dense point about 13.8 billion years ago and has been expanding and cooling ever since.

These are the two biggest mysteries in cosmology. Dark matter is an invisible substance that provides extra gravity to hold galaxies together. Dark energy is a mysterious force that is causing the expansion of the universe to accelerate.

Because light takes time to travel, looking at distant galaxies is like looking back in time. Telescopes like Hubble and James Webb allow us to see galaxies as they were billions of years ago, giving us clues about the early universe.