1920 ⟶ Arthur Eddington Proposes Nuclear Fusion as Stellar Energy Source

Arthur Eddington: Stellar nucleosynthesis
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1967

⚛️ Arthur Eddington Proposes Nuclear Fusion as Stellar Energy Source

Arthur Eddington: Stellar nucleosynthesis⟶
Arthur Eddington Proposes Nuclear Fusion as Stellar Energy Source (1920)
AstrophysicsNuclear PhysicsStarsStellar EvolutionEnergyScientific Theory20th Century ScienceCosmology

⚛️ Cecilia Payne-Gaposchkin Determines Solar Composition and Hydrogen Abundance

Cecilia Payne-Gaposchkin: Discovery of the composition of the Sun and that hydrogen is the most abundant element in the Universe⟶
Cecilia Payne-Gaposchkin Determines Solar Composition and Hydrogen Abundance (1925)
AstronomyCosmologyAstrophysicsElements20th Century Science
United StatesUnited States

⚛️ Georges Lemaître Proposes the Big Bang Theory

Georges Lemaître: Theory of the Big Bang⟶
Georges Lemaître Proposes the Big Bang Theory (1927)
CosmologyPhysicsAstronomyRelativityExpansion of the UniverseScientific TheoryGlobal Impact

🔭 Hubble Formulates Law of Expanding Universe

Edwin Hubble: Hubble's law of the expanding universe⟶
Hubble Formulates Law of Expanding Universe (1929)
AstronomyCosmologyEdwin Hubble20th Century ScienceUniverseExpansionSpace
United StatesUnited States

⭐ Chandrasekhar Determines Limit for White Dwarf Mass

Subrahmanyan Chandrasekhar discovers his eponymous limit of the maximum mass of a white dwarf star⟶
Chandrasekhar Determines Limit for White Dwarf Mass (1930)
AstrophysicsCosmologyStellar EvolutionTheoretical Physics20th Century ScienceGeneral RelativityQuantum Mechanics

📡 Discovery of the First Pulsar

Jocelyn Bell Burnell and Antony Hewish discover first pulsar⟶
Discovery of the First Pulsar (1967)
AstronomyAstrophysicsRadio AstronomyCosmology20th Century ScienceCambridge University
United KingdomUnited Kingdom