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12 results for "S-type asteroid"
S_3_04 — Space Mining, Asteroid Resources, and Off-World Economics
The asteroid belt and near-Earth asteroid (NEA) population contain mineral resources of staggering physical magnitude — a single metallic asteroid like 16 Psyche contains an estimated 10¹⁹ kg of iron, nickel, and platinu
E_1_04 — Complete Meteor & Asteroid Impact Catalog: Earth's Full Bombardment History
This document examines Complete Meteor & Asteroid Impact Catalog: Earth's Full Bombardment History, a topic within the Cataclysms and Chronology research area. Key areas of investigation include Theia Giant Impact (~4.51
E_1_02 — Meteor and Asteroid Impacts on Earth
This document examines Meteor and Asteroid Impacts on Earth, a topic within the Cataclysms and Chronology research area. Notable findings include: The Finnish Kalevala describes a "fire-child" stolen from heaven that bur
S_4_05 — Asteroid Deflection and Planetary Defense
Asteroid and comet impacts represent the only existential risk with a proven extinction track record — the Chicxulub impact 66 million years ago ended the Cretaceous and eliminated ~75% of species including non-avian din
S_4_16 — Asteroid Mining & Space Resource Extraction
Asteroid mining — the extraction of mineral resources, water, and volatiles from near-Earth asteroids (NEAs) and main-belt asteroids — represents a theoretically transformative but technically undemonstrated space indust
E_4_27 — Chicxulub Impact and the K-Pg Mass Extinction
The Chicxulub impact was a catastrophic asteroid strike that occurred approximately 66.043 ± 0.011 million years ago at what is now the Yucatan Peninsula, Mexico, marking the boundary between the Cretaceous and Paleogene
E_1_12 — Impact Winter Theory: Nuclear Winter and Chicxulub Parallels
The impact winter hypothesis describes the catastrophic global darkening and cooling that follows a major asteroid or comet impact, caused by the injection of vast quantities of dust, soot, and aerosols into the Earth's
E_1_07 — Tunguska Event and Modern Impact Evidence
On June 30, 1908, an atmospheric explosion over the Podkamennaya Tunguska River in central Siberia released energy equivalent to approximately 12 megatons of TNT (roughly 1,000 times the Hiroshima bomb), flattening 2,150
E_1_06 — Chicxulub Impact and the K-Pg Boundary
Approximately 66 million years ago, at the boundary between the Cretaceous and Paleogene periods (K-Pg boundary, formerly K-T boundary), a ~10 km diameter asteroid struck what is now the Yucatán Peninsula of Mexico, crea
O_2_11 — Impact Craters: Chicxulub, Vredefort, Sudbury, and Crater Morphology
Impact craters — circular depressions formed by the hypervelocity collision of asteroids, comets, or meteoroids with planetary surfaces — are among the most geologically significant features on Earth and throughout the s
R_1_03 — Mass Extinction Events
Life on Earth has endured at least five catastrophic mass extinctions in 540 million years, each eliminating 60–96% of all species. The "Big Five" are: End-Ordovician (~443 Mya, ~85% species lost), Late Devonian (~372 My
S_4_01 — Existential Risk Taxonomy
Existential risk (x-risk) refers to any event that could permanently curtail humanity's long-term potential — including extinction, civilizational collapse without recovery, or irreversible loss of value (e.g., permanent
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