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Search 3,721 documents across 34 fields — every claim tier-rated by evidence
3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.
44 results for "cosmological redshift" — page 1 of 3
Q_1_11 — Cosmological Redshift and the Hubble Law
The discovery that distant galaxies' light is systematically shifted toward longer (redder) wavelengths was the first observational evidence that the universe is expanding. Vesto Slipher's spectroscopic measurements (191
ZA_2_18 — Dark Energy Mechanisms: Cosmological Constant, Quintessence, and the Accelerating Universe
Dark energy — the unknown agent driving the accelerating expansion of the universe — constitutes approximately 68.3% of the total energy density of the cosmos (Planck 2018 results), making it the dominant component of th
Q_1_14 — Vacuum Energy and the Cosmological Constant Problem
The cosmological constant problem is widely regarded as the most severe fine-tuning problem in all of physics. Quantum field theory predicts that the vacuum of spacetime is not empty but seethes with zero-point fluctuati
ZA_1_18 — Dark Energy and the Cosmological Constant Problem
Dark energy — the mysterious component constituting ~68% of the total energy density of the observable universe — drives the accelerating expansion of space and represents one of the deepest unsolved problems in physics.
ZH_4_02 — Precession in Ancient Culture: Hamlet's Mill Thesis
Hamlet's Mill: An Essay on Myth and the Frame of Time (1969), by MIT historian of science Giorgio de Santillana and ethnologist Hertha von Dechend, is one of the most intellectually ambitious — and controversial — works
Q_1_22 — Dark Flow and Cosmic Dipole Anomalies
Dark flow refers to a claimed coherent bulk motion of galaxy clusters toward a specific region of the sky at velocities inconsistent with the predictions of standard ΛCDM cosmology, first reported by NASA Goddard astroph
A_4_14 — Shan Hai Jing (Classic of Mountains and Seas)
The Shan Hai Jing (山海經, "Classic of Mountains and Seas") is one of the most extraordinary texts of the ancient Chinese literary corpus — an encyclopedic compendium of mythological geography, zoology, mineralogy, and cosm
U_5_20 — Sacred Geography: Landscape, Pilgrimage, and Ritual Space
Sacred geography is the study of how human cultures invest physical landscapes with spiritual, cosmological, and mythological significance — transforming terrain into hierophanic space where the divine intersects the mat
C_3_14 — Central Asian Shamanic Traditions
Central Asian shamanism represents one of the oldest continuously practiced spiritual systems on Earth, with roots extending to at least the Neolithic period across the vast steppe, taiga, and mountain regions from the U
Q_1_06 — Dark Matter and Dark Energy
Approximately 95% of the universe's total mass-energy content is invisible: ~27% dark matter and ~68% dark energy. Dark matter was first inferred by Fritz Zwicky (1933) from galaxy cluster dynamics and confirmed by Vera
Q_1_08 — Observable Universe and Cosmic Web
The observable universe has a diameter of ~93 billion light-years (comoving distance) and contains an estimated 2 trillion galaxies (Conselice et al. 2016), ~10²⁴ stars, and ~10⁸⁰ atoms. But its most striking feature is
Q_1_15 — Dark Energy Models and Quintessence
The accelerating expansion of the universe, discovered in 1998 via Type Ia supernovae, demands an explanation. The simplest model — Einstein's cosmological constant Λ with equation of state $w = p/\rho = -1$ exactly — fi
Q_1_16 — History of Cosmology: Ancient to Modern
Cosmology — the study of the universe's origin, structure, and fate — is humanity's oldest intellectual pursuit and its most modern science. From the flat-earth mythologies of ancient Mesopotamia through the geocentric c
Q_1_13 — Cosmic Strings and Topological Defects
Cosmic strings are one-dimensional topological defects that may have formed during symmetry-breaking phase transitions in the early universe, analogous to cracks in ice or vortex lines in superfluids. Predicted by Kibble
Q_1_09 — Fate of the Universe
How will the universe end? This question has moved from philosophy and eschatology into hard physics, driven by the 1998 discovery that the universe's expansion is ACCELERATING (Riess et al. 1998; Perlmutter et al. 1999
Q_1_01 — The Anthropic Principle & Fine-Tuning of the Universe
The universe appears to be astonishingly fine-tuned for the existence of complex life. Alter the cosmological constant by 1 part in 10¹²⁰, or the strong nuclear force by 0.5%, or the ratio of electromagnetic to gravitati
Q_1_20 — Fractal Cosmology: Is the Universe Self-Similar Across Scales?
The observable universe organises matter into a staggering fractal-like web of galaxy filaments, walls, voids, and clusters — structures visible at scales from 1 Mpc (galaxy groups) to 600 Mpc (the Hercules-Corona Boreal
Q_4_16 — Chandrasekhar Limit: White Dwarf Physics and Stellar Death
The Chandrasekhar limit — approximately 1.4 solar masses ($1.4 \, M_\odot$) — is the maximum mass of a stable white dwarf star, the dense remnant left after a low- or intermediate-mass star (initial mass up to ~8 $M_\odo
Q_4_03 — General Relativity Tests and Confirmations
Albert Einstein's general theory of relativity (GR, 1915) has survived over a century of increasingly precise experimental tests, ranging from Solar System measurements to strong-field astrophysical observations. The cla
Q_4_32 — The Fundamental Constants: Physics, Life, and Mathematics
The universe runs on numbers — and not arbitrary ones. A small set of fundamental constants, mostly dimensionless, determines every property of matter, energy, space, and time. Change any of them by a fraction and atoms
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