1604day.year
Kepler's Supernova is observed in the constellation of Ophiuchus.
Astronomers witness Kepler's Supernova in Ophiuchus, the last supernova observed in our galaxy to date.
On October 17, 1604, Johannes Kepler and other European astronomers documented a bright new star in the constellation Ophiuchus. Now known as Kepler's Supernova, it reached peak magnitude comparable to Venus and remained visible to the naked eye for over a year. Kepler published detailed observations in his work, 'De Stella Nova', marking a significant advancement in early telescopic astronomy. The event challenged the Aristotelian belief in unchanging heavens and influenced the scientific revolution. Remnants of the supernova are still studied by modern astrophysicists to understand stellar explosions and cosmic evolution. It stands as the most recent supernova visible without telescopes in the Milky Way.
1604
Kepler's Supernova
1907day.year
Marconi begins the first commercial transatlantic wireless service.
Guglielmo Marconi launches the first commercial transatlantic wireless telegraph service, revolutionizing global communication.
On October 17, 1907, the Marconi Wireless Telegraph Company activated its first commercial transatlantic wireless service between Clifden, Ireland and Glace Bay, Nova Scotia.
The service allowed daily telegraph communications across the Atlantic, significantly reducing transmission times compared to undersea cables.
Powered by advanced longwave radio stations, it marked a major milestone in telecommunications history.
Shipping companies and governments quickly adopted the technology for safety and diplomatic correspondence.
This innovation laid the groundwork for modern radio broadcasting and the global wireless networks we rely on today.
Marconi's achievement demonstrated the vast potential of wireless telegraphy in connecting continents.
1907
Marconi
1933day.year
Albert Einstein flees Nazi Germany and moves to the United States.
Renowned physicist Albert Einstein flees Nazi Germany and takes refuge in the United States.
On October 17, 1933, Albert Einstein departed Germany for the United States, escaping Nazi persecution of Jewish academics.
He had already accepted a position at the Institute for Advanced Study in Princeton, solidifying his move away from Berlin.
Einstein's emigration marked a significant intellectual drain for Germany and bolstered America's scientific community.
In the U.S., he continued groundbreaking research in theoretical physics and became an outspoken advocate for peace and civil rights.
His relocation highlighted the broader exodus of scholars fleeing totalitarian regimes in Europe.
Einstein's presence in America played a pivotal role in the country's emergence as a global center of scientific innovation.
1933
Albert Einstein
1956day.year
The first commercial nuclear power station is officially opened by Queen Elizabeth II in Sellafield, England.
Queen Elizabeth II inaugurates the world’s first commercial nuclear power station at Sellafield in England.
Originally known as Calder Hall, the plant began operations in 1956 as the first civil nuclear power station.
On October 17, 1956, Queen Elizabeth II officially opened the facility at Sellafield in Cumbria.
It generated electricity for the National Grid and produced plutonium for the UK’s nuclear weapons program.
The success of Calder Hall marked the dawn of civilian nuclear energy and influenced future plant designs worldwide.
Its legacy endures in ongoing debates over nuclear power’s safety and sustainability.
1956
Sellafield