March 25

Events - Science & Technology

1655day.year

Saturn's largest moon, Titan, is discovered by Christiaan Huygens.

Christiaan Huygens discovers Titan, the largest moon of Saturn, revolutionizing astronomical knowledge.
On March 25, 1655, Dutch astronomer Christiaan Huygens observed Titan, the first known satellite of Saturn. Using a telescope of his own design, Huygens noticed a bright object near the planet’s rings. This discovery marked a breakthrough in telescopic astronomy and planetary science. Titan’s identification challenged contemporary models of the Solar System and spurred further observations of other celestial bodies. Huygens later published his findings in his treatise 'Systema Saturnium,' cementing his legacy in the history of astronomy.
1655 Saturn Titan Christiaan Huygens
1948day.year

The first successful tornado forecast predicts that a tornado will strike Tinker Air Force Base, Oklahoma.

Meteorologists achieve the first successful tornado forecast, warning Tinker Air Force Base of an oncoming twister.
The U.S. Weather Bureau, experimenting with new radar and analysis techniques, issued a rare tornado forecast. Forecasters accurately predicted the storm’s path, alerting base officials hours before impact. Tinker AFB took precautionary measures, moving personnel and securing vital equipment. While the tornado still caused damage, the advance warning significantly reduced casualties. This milestone laid the groundwork for modern severe weather warning systems and tornado watches.
1948 tornado forecast a tornado will strike Tinker Air Force Base Oklahoma
1979day.year

The first fully functional Space Shuttle orbiter, Columbia, is delivered to the John F. Kennedy Space Center to be prepared for its first launch.

NASA’s first fully functional Space Shuttle orbiter, Columbia, arrives at Kennedy Space Center in 1979 to prepare for its inaugural flight.
On 25 March 1979, the Space Shuttle orbiter Columbia was officially delivered to NASA’s Kennedy Space Center in Florida. As the program’s first fully operational reusable spacecraft, Columbia represented a major shift in spaceflight strategy. Engineers began extensive pre-flight checks, structural tests, and integration of mission-specific equipment. The reusable design aimed to lower costs and increase the frequency of launches compared to expendable rockets. Columbia would go on to make history with the inaugural STS-1 mission in April 1981.
1979 Space Shuttle Columbia John F. Kennedy Space Center
1995day.year

WikiWikiWeb, the world's first wiki, and part of the Portland Pattern Repository, is made public by Ward Cunningham.

Ward Cunningham launches WikiWikiWeb in 1995, creating the world’s first wiki platform for collaborative web editing.
On 25 March 1995, programmer Ward Cunningham publicly released WikiWikiWeb as part of the Portland Pattern Repository. The platform allowed users to instantly create and edit pages through a simple, web-based interface. This open-editing model introduced “wiki” as a concept and pioneering markup conventions. WikiWikiWeb’s version tracking and page history laid the groundwork for transparent collaboration. Its success inspired a global movement of user-driven knowledge platforms, most notably Wikipedia.
1995 WikiWikiWeb Portland Pattern Repository Ward Cunningham