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Cosmology

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

Explore by Cosmology

Conceptual visualization of CMB polarization twisting due to cosmic birefringence

June 30, 2026

Cosmic Birefringence: How a 0.2° Twist in the CMB's Oldest Light May Reveal Parity-Violating Dark Matter

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Deep space visualization of the cosmic microwave background distorted by gravitational lensing and dark matter webs

June 29, 2026

The Negative Neutrino Mass Anomaly: CMB Lensing and the Σmν < 0 Tension After DESI DR2

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Cosmic web structure illustrating CMB lensing and neutrino free-streaming

June 28, 2026

The Negative Neutrino Mass Anomaly: Breaking the Σm_ν Floor with DESI and the CMB

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Abstract visualization of cosmic microwave background anisotropies blending with theoretical physics equations.

June 27, 2026

The CMB Spectral Index Anomaly: Is Starobinsky Inflation Ruled Out After ACT DR6?

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Scientific visualization of a cosmic glitch altering gravity across the large-scale structure of the universe.

June 25, 2026

The Cosmic Glitch in Gravity: Is Newton's Constant 1% Weaker on Super-Horizon Scales?

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Abstract visualization of glowing polarization vectors twisting through a dark energy field in space.

June 24, 2026

Cosmic Birefringence: The Twist in the Universe's Oldest Light

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Cinematic visualization of the Atacama Cosmology Telescope observing a glowing purple and cyan map of cosmic dark matter filaments.

June 23, 2026

The S8 Tension Verdict: ACT DR6 CMB Lensing and the 43σ Mass Map

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Split scientific visualization comparing the rapid expansion of cosmic inflation with the contracting phase of a bouncing universe.

June 22, 2026

Cosmic Inflation vs. the Big Bounce: Did the Universe Bang or Bounce? (2026 Evidence Review)

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Scientific visualization of primordial magnetic fields weaving through cosmic plasma, causing baryon clumping.

June 21, 2026

Primordial Magnetic Fields and the bΛCDM Resolution of the Hubble Tension

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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.