A Brief History of Time — book overview and significance A Brief History of Time A Brief History of Time (1988) by Stephen Hawking popularized cosmology for general readers, explaining the big bang, black holes, time's arrow and efforts to find a unified theory…
Anaxagoras — early Ionian philosopher and the idea of nous Anaxagoras Anaxagoras (5th century BC) was an Ionian Greek philosopher who introduced the concept of nous (mind) and argued for material explanations of celestial bodies; his work influenced…
Anthropic principle Philosophical and scientific idea that observations of the universe are constrained by the necessity that observers exist; includes weak/strong forms and influence on cosmology and…
Big Bang (cosmology) Big Bang Overview of the Big Bang: the scientific model for the universe’s origin, its evidence, historical development, main concepts, and remaining questions.
