#thisdayinscience — Public Fediverse posts

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1941: Plutonium is first produced and isolated by Dr. Glenn T. Seaborg
https://en.wikipedia.org/wiki/Plutonium

2/23 1987: Supernova 1987a is seen in the Large Magellanic Cloud
https://en.wikipedia.org/wiki/Supernova%201987a

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1958: The CND symbol, aka peace symbol, commissioned by the Direct Action Committee in protest against the Atomic Weapons Research Establishment, is designed and completed by Gerald Holtom
https://en.wikipedia.org/wiki/peace%20symbol

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1962: Mercury program: While aboard Friendship 7, John Glenn becomes the first American to orbit the earth, making three orbits in four hours, 55 minutes
https://en.wikipedia.org/wiki/John%20Glenn

2/20 1986: The Soviet Union lauches Mir. Remaining in orbit for 15 years, it is occupied for ten of those years.
https://en.wikipedia.org/wiki/Mir

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1473: Nicolaus Copernicus born
https://en.wikipedia.org/wiki/Nicolaus%20Copernicus

1985: William J. Schroeder becomes the first recipient of an artificial heart to leave hospital
https://en.wikipedia.org/wiki/artificial%20heart

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1977: The Space Shuttle Enterprise test vehicle is carried on its maiden “flight” on top of a Boeing 747
https://en.wikipedia.org/wiki/Space%20Shuttle%20Enterprise

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1959: Vanguard 2: The first weather satellite is launched to measure cloud-cover distribution
https://en.wikipedia.org/wiki/Vanguard%202

1996: In Philadelphia, world champion Garry Kasparov beats the Deep Blue supercomputer in a chess match
https://en.wikipedia.org/wiki/Deep%20Blue%20(chess%20computer)

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1923: King Tut's tomb opened
https://en.wikipedia.org/wiki/King%20Tut

1978: The first computer bulletin board system is created (CBBS in Chicago)
https://en.wikipedia.org/wiki/CBBS

2005: The Kyoto Protocol comes into force, following its ratification by Russia
https://en.wikipedia.org/wiki/Kyoto%20Protocol

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1956: ENIAC, the first electronic general-purpose computer, is formally dedicated at the University of Pennsylvania in Philadelphia
https://en.wikipedia.org/wiki/ENIAC

2001: The first draft of the complete human genome is published in Nature
https://en.wikipedia.org/wiki/human%20genome

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1990: The Voyager 1 spacecraft takes the photograph of planet Earth that later become famous as Pale Blue Dot
https://en.wikipedia.org/wiki/Pale%20Blue%20Dot

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1809: Charles Darwin born
https://en.wikipedia.org/wiki/Charles%20Darwin

1961: The Soviet Union launches Venera 1 towards Venus
https://en.wikipedia.org/wiki/Venera%201

2001: NEAR Shoemaker spacecraft touches down in the “saddle” region of 433 Eros, becoming the first spacecraft to land on an asteroid
https://en.wikipedia.org/wiki/NEAR%20Shoemaker

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1847: Thomas Edison born
https://en.wikipedia.org/wiki/Thomas%20Edison

1997: Space Shuttle Discovery is launched on a mission to service the Hubble Space Telescope
https://en.wikipedia.org/wiki/Hubble%20Space%20Telescope

1999: Pluto crosses Neptune's orbit, ending a nearly 20-year period (since 1979) when it was closer to the Sun than the gas giant; Pluto is not expected to interact with Neptune's orbit for another 228 years
https://en.wikipedia.org/wiki/Pluto

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1996: IBM supercomputer Deep Blue defeats Garry Kasparov in chess for the first time
https://en.wikipedia.org/wiki/Deep%20Blue%20(chess%20computer)
https://en.wikipedia.org/wiki/Garry%20Kasparov

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1986: Halley's Comet last appeared in the inner solar system
https://en.wikipedia.org/wiki/Halley's%20Comet

1996: The element Copernicium is discovered
https://en.wikipedia.org/wiki/Copernicium

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1979: Pluto moves inside Neptune's orbit, the first time since either planet was discovered

National Periodic Table Day

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1959: Jack Kilby of Texas Instruments files the first patent for an integrated circuit
https://en.wikipedia.org/wiki/integrated%20circuit

2018: Falcon Heavy first launched, carrying Starman towards Mars
https://en.wikipedia.org/wiki/Falcon%20Heavy

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62: Earthquake in Pompeii, setting the stage for the volcano 17 years later
https://en.wikipedia.org/wiki/62_Pompeii%20earthquake

https://www.youtube.com/watch?v=kMFQRBs9pOg&list=PLP0IenmeCOtzlZ4R-NAhm5sl8QBVx4yG0&index=1
#Triumvirate

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1995: Eileen Collins becomes the first woman to pilot the Space Shuttle
https://en.wikipedia.org/wiki/Eileen%20Collins

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2004: Space Shuttle Columbia disintegrates on reentry, killing all 7 astronauts
https://en.wikipedia.org/wiki/Space%20Shuttle%20Columbia%20disaster

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1958: The first successful American satellite detects the Van Allen radiation belt
https://en.wikipedia.org/wiki/Explorer%201
https://en.wikipedia.org/wiki/Van%20Allen%20radiation%20belt

1961: Mercury-Redstone 2: Ham the Chimp travels into outer space.
https://en.wikipedia.org/wiki/Mercury-Redstone%202
https://en.wikipedia.org/wiki/Ham%20the%20Chimp

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1826: The Menai Suspension Bridge, considered the world's first modern suspension bridge, connecting the Isle of Anglesey to the north West coast of Wales, is opened
https://en.wikipedia.org/wiki/Menai%20Suspension%20Bridge

1862: The first American ironclad warship, the USS Monitor is launched
https://en.wikipedia.org/wiki/USS%20Monitor

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1886: Karl Benz patents first successful gasoline powered automobile
https://en.wikipedia.org/wiki/Karl%20Benz

1980: The Rubik's Cube makes its international debut at the Ideal Toy Corp. in Earl's Court, London
https://en.wikipedia.org/wiki/Rubik's%20Cube

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1724: The Russian Academy of Sciences is founded in St. Petersburg by Peter the Great, and implemented by Senate decree. It is called the St. Petersburg Academy of Sciences until 1917
https://en.wikipedia.org/wiki/Russian%20Academy%20of%20Sciences

1986: Space Shuttle program: STS-51-L mission: Space Shuttle Challenger disintegrates after liftoff, killing all seven astronauts on board
https://en.wikipedia.org/wiki/STS-51-L

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1967: Apollo program: Astronauts Gus Grissom, Ed White and Roger Chaffee are killed in a fire during a test of their Apollo 1 spacecraft at the Kennedy Space Center, Florida
https://en.wikipedia.org/wiki/Apollo%201

1/27/1967: The Outer Space Treaty is signed, forming the basis of international space law
https://en.wikipedia.org/wiki/Outer%20Space%20Treaty

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1905: The world's largest diamond ever, the Cullinan weighing 3,106.75 carats (0.621350 kg), is found at the Premier Mine near Pretoria in South Africa
https://en.wikipedia.org/wiki/Cullinan%20Diamond

1949: The Hale telescope at Palomar Observatory sees first light under the direction of Edwin Hubble, becoming the largest aperture optical telescope (until BTA-6 is built in 1976)
https://en.wikipedia.org/wiki/Hale%20telescope
https://en.wikipedia.org/wiki/First%20light%20(astronomy)

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1915: First transatlantic telephone call made by Alexander Graham Bell
https://en.wikipedia.org/wiki/Alexander%20Graham%20Bell

1/25 1947: Thomas Goldsmith Jr. files a patent for a “Cathode Ray Tube Amusement Device”, the first ever electronic game
https://en.wikipedia.org/wiki/Cathode%20Ray%20Tube

1/25 1995: The Norwegian rocket incident: Russia almost launches a nuclear attack after it mistakes Black Brant XII, a Norwegian research rocket, for a US Trident missile
https://en.wikipedia.org/wiki/Norwegian%20rocket%20incident

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1978: Soviet satellite Kosmos 954, with a nuclear reactor on board, burns up in Earth's atmosphere, scattering radioactive debris over Canada's Northwest Territories. Only 1% is recovered.
https://en.wikipedia.org/wiki/Kosmos%20954

1984: First Macintosh computer goes on sale
https://en.wikipedia.org/wiki/Macintosh

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1960: The bathyscaphe Bwthyscaphe Trieste breaks a depth record by descending to 10,911 metres (35,797 ft) in the Pacific Ocean
https://en.wikipedia.org/wiki/Bwthyscaphe%20Trieste

1998: Netscape announced Mozilla, with the intention to release Communicator code as open source
https://en.wikipedia.org/wiki/Mozilla

2003: A very weak signal from Pioneer 10 is detected for the last time, but no usable data can be extracted
https://en.wikipedia.org/wiki/Pioneer%2010

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1992: Space Shuttle program: Dr. Roberta Bondar becomes the first Canadian woman and the first neurologist in space
https://en.wikipedia.org/wiki/Roberta%20Bondar

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1954: The first nuclear-powered submarine, the USS Nautilus, is launched in Groton, Connecticut by Mamie Eisenhower, the First Lady of the United States
https://en.wikipedia.org/wiki/USS%20Nautilus%20(SSN-571)

1976: Commercial service of Concorde begins with the London-Bahrain and Paris-Rio routes
https://en.wikipedia.org/wiki/Concorde

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1929: In Old Arizona, the first full-length talking motion picture filmed outdoors, is released
https://en.wikipedia.org/wiki/In%20Old%20Arizona
1/20 2007: Four-man Team N2i, using only skis and kites, completes a 1,093-mile (1,759 km) trek to reach the Antarctic pole of inaccessibility for the first time since 1965 and for the first time ever without mechanical assistance
https://en.wikipedia.org/wiki/Team%20N2i

1/20 1930: Buzz Aldrin born
https://en.wikipedia.org/wiki/Buzz%20Aldrin