In the year 1971, Soviet engineers set fire to a gas-filled hole in the Turkmenistan desert, thinking it would burn out in a few days.
However, to their astonishment, the flames have persisted, and the site, known as "The Door to Hell," has been burning continuously for over 52 years
Hundreds of natural gas fires illuminate the floor and rim of the crater. The crater has been burning since the 1980s. How the crater formed is unknown, but engineers ignited the crater to prevent poisonous gases from spreading.
#World #Curiosities
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Katherine Johnson was the mathematician whose calculations of orbital mechanics as a NASA
Born #Today in 1918, Katherine Johnson was the mathematician whose calculations of orbital mechanics as a NASA employee were critical to the success of the first and subsequent U.S. crewed spaceflights
[✏️ Steve Breen, San Diego Union Tribune]
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