1932 ⟶ Jansky Detects Radio Waves from Space
Karl Jansky detects the first radio waves coming from space....
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1932
1967
1990
2019
📡 Jansky Detects Radio Waves from Space
Karl Jansky detects the first radio waves coming from space. In 1942, radio waves from the Sun are detected. Seven years later radio astronomers identify the first distant source – the Crab Nebula, and the galaxies Centaurus A and M87.⟶
Radio AstronomyJanskyCosmic Radio WavesAstronomyAstrophysicsCrab NebulaCentaurus AM8720th Century Astronomy
United States🌌 Jansky Discovers Sagittarius A
Karl Guthe Jansky discovers the first astronomical radio source, Sagittarius A⟶
Radio AstronomyJanskySagittarius AGalactic CenterAstronomyAstrophysicsCosmic Radio Sources20th Century Astronomy
United States
🔭 Hubble Space Telescope Launched and Initial Difficulties
The Hubble Space Telescope, the first large optical telescope in orbit, is launched using the Space Shuttle, but astronomers soon discovered that it is crippled by a problem with its mirror. A complex repair mission in 1993 allows the telescope to start producing spectacular images of distant stars, nebulae, and galaxies.⟶
AstronomySpace TelescopeHubble Space TelescopeSpace ExplorationOptical AstronomyNASA1990sCosmologyAstrophysicsEngineering
United States🕳️ First Image of a Black Hole at the Center of Galaxy M87
In April 2019, the Event Horizon Telescope Collaboration obtained the first image of a black hole which was at the center of galaxy M87, providing more evidence for the existence of supermassive black holes in accordance with general relativity.⟶
AstronomyBlack HoleEvent Horizon TelescopeM87General RelativitySupermassive Black HoleObservational AstronomyAstrophysics
United States
Germany
Japan⚫ First Image of a Black Hole
First image of a black hole⟶
AstrophysicsBlack HoleEvent Horizon TelescopeM87General RelativityObservational AstronomyRadio Astronomy
United StatesGermanyJapan