2020 ⟶ Jupiter and Saturn's Closest Conjunction Since 1623
December 21: A great conjunction of Jupiter and Saturn occur...
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2020
☄️ Halley's Comet Returns
March: Return of Halley's Comet.⟶
AstronomyCometsSpace ExplorationScientific ObservationPopular Culture
🪐 First Confirmed Extrasolar Planet Discovery
Michel Mayor and Didier Queloz definitively observe the first extrasolar planet around a main sequence star⟶
AstronomyExoplanetsPlanetary ScienceAstrophysicsSpace ExplorationObservational Astronomy20th Century Science
Switzerland☀️ Bastille Day Solar Flare Causes Geomagnetic Storm
July 14: A powerful solar flare, later named the Bastille Day event, causes a geomagnetic storm on Earth.⟶
AstronomySpaceEarth Science
🔭 Jupiter and Saturn's Closest Conjunction Since 1623
December 21: A great conjunction of Jupiter and Saturn occurs, with the two planets separated in the sky by 0.1 degrees. This is the closest conjunction between the two planets since 1623.⟶
AstronomyPlanetsCelestial EventsSpaceObservational AstronomyScientific Observation
📡 Astronomers Detect Possible Radio Signal from Proxima Centauri
December 18: Media outlets report that astronomers have detected a radio signal, BLC1, apparently from the direction of Proxima Centauri, the closest star to the Sun.⟶
AstronomySpace ExplorationAstrobiology