RESEARCH BASE
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.
24 results for "upper atmosphere" — page 1 of 2
O_1_14 — Sprites, Elves, and Blue Jets: Upper Atmosphere Transient Luminous Events
Transient Luminous Events (TLEs) are a family of large-scale optical and electrical phenomena occurring in the upper atmosphere (stratosphere, mesosphere, and lower ionosphere, ~20-100 km altitude) above active thunderst
Q_3_18 — Exoplanet Atmospheres: Spectroscopic Characterization and Biosignature Detection
The characterization of exoplanet atmospheres — determining the chemical composition, temperature structure, cloud properties, and potential biosignatures of planets orbiting other stars — has emerged as one of the most
U_5_21 — Upper Paleolithic Art: Cave Painting, Portable Art, and Symbolic Cognition
Upper Paleolithic art — spanning approximately 45,000 to 10,000 years ago — represents the earliest unambiguous evidence of complex symbolic cognition in Homo sapiens. The corpus includes parietal (cave wall) art at over
ZF_1_14 — Ocean-Atmosphere Coupling: Heat Exchange, Evaporation, and Weather
The ocean-atmosphere interface — the boundary between Earth's two great fluid envelopes — is the planet's most important energy exchange surface. The ocean absorbs approximately 93% of the excess heat trapped by anthropo
Q_3_20 — Exoplanet Atmospheres: Spectroscopy, Biosignatures & Habitability
The characterization of exoplanet atmospheres represents one of the most rapidly advancing frontiers in astrophysics, driven by the James Webb Space Telescope (JWST, launched December 25, 2021) and ground-based high-reso
M_3_11 — Paleolithic Calendars: Marshack's Lunar Notation Hypothesis
In 1972, science journalist Alexander Marshack published The Roots of Civilization, arguing that series of marks engraved on Upper Paleolithic bone and antler artifacts — previously dismissed as random decorations or sim
U_5_31 — Chauvet Cave: Paleolithic Art and the Origins of Human Visual Expression
The Chauvet-Pont-d'Arc Cave (Grotte Chauvet), discovered on December 18, 1994, by speleologists Jean-Marie Chauvet, Éliette Brunel, and Christian Hillaire in the Ardèche gorge of southern France, contains some of the old
U_5_30 — Venus Figurines: Paleolithic Art, Fertility Symbolism, and the Female Form
Venus figurines — small statuettes of the female form, typically emphasizing breasts, abdomen, hips, and vulva while minimizing faces, arms, and feet — constitute one of the most widespread and enigmatic art traditions o
U_2_02 — Cave Art — Lascaux, Chauvet & World's Oldest Paintings
Cave art constitutes the oldest known evidence of symbolic visual expression by Homo sapiens (and possibly Neanderthals), with the earliest confirmed figurative painting — a narrative hunting scene at Leang Karampuang, S
C_4_14 — Cherokee Cosmology and the Great Buzzard
Cherokee (Tsalagi) cosmology structures the universe as a three-tiered system: Galunlati (the Upper World of order, purity, and spiritual beings), Elohi (the Middle World of everyday human existence), and the Under World
ZF_1_12 — El Niño and ENSO: Pacific Oscillation and Global Climate Impact
The El Niño–Southern Oscillation (ENSO) is the most powerful year-to-year climate fluctuation on Earth — a coupled ocean-atmosphere phenomenon centered in the tropical Pacific that affects weather patterns, agriculture,
E_3_03 — Ice Age Civilizations — Evidence for Complexity During the Last Glacial Maximum
The Last Glacial Maximum (LGM, ~26,500-19,000 BP) — when ice sheets covered ~32% of the global land surface and sea levels dropped ~120 meters below present — was not a period of human stagnation but of remarkable cultur
E_2_17 — Campanian Ignimbrite: 40,000 BP European Super-Eruption
The Campanian Ignimbrite (CI) eruption — also known as the CI super-eruption — was the largest volcanic event in the Mediterranean region during the past 200,000 years and one of the largest explosive eruptions in the La
Q_3_17 — Titan: Prebiotic Chemistry on Saturn's Largest Moon
Titan, Saturn's largest moon (diameter 5,150 km — larger than Mercury), is the only body in the solar system besides Earth with stable surface liquids and a dense nitrogen-dominated atmosphere. Discovered by Christiaan H
Q_3_14 — Planetary Science: Mars, Venus, and Comparative Planetology
Planetary science studies the formation, composition, atmospheres, surfaces, interiors, and evolution of planets, moons, and other bodies in our solar system and beyond. Comparative planetology — examining how planets wi
O_2_09 — The Mohorovičić Discontinuity and Earth's Internal Structure
The Mohorovičić Discontinuity (the "Moho") — the boundary between Earth's crust and upper mantle — is one of the most fundamental structural features of our planet and a cornerstone of solid-Earth geophysics. It was disc
D_1_14 — Karahan Tepe — Pre-Pottery Neolithic Ritual Complex
Karahan Tepe is a Pre-Pottery Neolithic (PPN) site in southeastern Turkey (Şanlıurfa Province), approximately 46 km southeast of Göbekli Tepe, dating to c. 9400–8200 BCE. Discovered during surface surveys in 1997 and sys
D_5_21 — Venus Figurines: Paleolithic Female Imagery and Prehistoric Symbolism
"Venus figurines" are small carved female statuettes — typically 5–25 cm in height — produced across a vast geographic range from southwestern France to Siberia during the Upper Paleolithic, primarily the Gravettian peri
D_4_06 — Lascaux Cave: Paleolithic Art and Astronomical Interpretation
Lascaux Cave — located in the Vézère Valley near Montignac in the Dordogne region of southwestern France — is one of the most celebrated Paleolithic painted caves in the world. Discovered on September 12, 1940, by four t
Y_4_03 — Shamanic Practices / Altered States Synthesis
Shamanic practices represent humanity's oldest spiritual technology, attested across every inhabited continent from at least 30,000 BCE (Upper Paleolithic cave art) to the present day. Despite vast cultural distances — g
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