1962 ⟶ Discovery of Scorpius X-1, the First Cosmic X-Ray Source

Riccardo Giacconi and his team discover the first cosmic x-r...
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Year
1912
1925
1962
1967
1982
1990

🔭 Henrietta Swan Leavitt Discovers Cepheid Period-Luminosity Relation

Henrietta Swan Leavitt: Cepheid variable period-luminosity relation⟶
Henrietta Swan Leavitt Discovers Cepheid Period-Luminosity Relation (1912)
AstronomyCosmologyAstrophysicsEdwin Hubble
United StatesUnited States

⚛️ 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

🔭 Discovery of Scorpius X-1, the First Cosmic X-Ray Source

Riccardo Giacconi and his team discover the first cosmic x-ray source, Scorpius X-1⟶
Discovery of Scorpius X-1, the First Cosmic X-Ray Source (1962)
AstronomyAstrophysicsCosmologySpace ExplorationObservational Astronomy
United StatesUnited States

☄️ First Gamma-Ray Burst Detected by Vela Satellites

Vela nuclear test detection satellites discover the first gamma-ray burst⟶
First Gamma-Ray Burst Detected by Vela Satellites (1967)
AstronomyAstrophysicsSpace ExplorationCold WarParticle Physics
United StatesUnited States

🔭 Discovery of the First Millisecond Pulsar

Donald C. Backer et al. discover the first millisecond pulsar⟶
Discovery of the First Millisecond Pulsar (1982)
AstronomyAstrophysicsRadio AstronomySpace ExplorationCosmology
United StatesUnited States

🔭 Hubble Space Telescope Launched

April 24 – May 20: Launch of the Hubble Space Telescope.⟶
Hubble Space Telescope Launched (1990)
Space ExplorationAstronomyTelescopesNASAAstrophysicsCosmologySpace Race
United StatesUnited States