1. Kola Super Deep Borehole
Located within the arctic circle in the northwest corner of Russia is the deepest hole ever drilled into the earth. Soviet scientists began drilling the hole in 1970, it eventually reaching a depth of 40,230 ft (12,262 m) in 1989.
The Soviets wanted to bore through the Earths crust and into the upper mantle, though no one knew what would happen. Fears of creating seismic disasters upon the world or even ‘demons from hell’, proved to be unfounded and the project was abandoned due to the temperatures reaching in excess of 350 F (177 C) which allowed rock to flow back into the borehole.
2. Trinity Test
Conducted part of the Manhattan project by the U.S. Army on July 16th 1945, the trinity test was the first ever detonation of a nuclear device. The bombs original development was slowed by fears of a project scientist Edward Teller, who suggested that a fission bomb might ignite the earth’s atmosphere with a self-sustaining fusion reaction of Nitrogen Nuclei. Further calculations showed that the odds of such a reaction were incredibly small and development continued. The bomb produced the explosive power of 21 kilotons of TNT, prompting project scientist J. Robert Oppenheimer to re sight a line from Hindu Scripture: ”Now i am become death, the destroyer of worlds”.
3. Large Hadron Collider
When it went live, September 10th, 2008, some thought that it could cause an apocalyptic response. The $6 billion particle accelerator was designed to accelerate proton beams around 17 mile loop before crashing them together, to stimulate the microscopic black holes formed during The Big Bang. Some were worried that these black holes would grow to consume the earth. but scientists dismissed this idea and calculated that any black holes produced would evaporate due to a phenomenon known as Hawking Radiation.
4. Starfish Prime
Earth’s magnetosphere is an important layer of particles that are charged, that protects the atmosphere from solar wind ‘so what would happen if a large nuclear bomb was detonated there? Well, they detonated to find out in 1962. Looking to find ways to disrupt Soviet missile systems, a thermonuclear warhead was detonated 250 miles in the air at Johnson island in the pacific ocean. 1.4 Megaton explosion was seen 900 miles (1450km) away in Hawaii where the electromagnetic pulse damaged streetlights and phone lines. Producing an artificial radiation belt around Earth which lasted 5 years and crippled the use of one third of all satellites in the lower earth orbit.
The ‘search for extraterrestrial intelligence’ is the collective term for a number of activities searching for life in outer space. As early as 1896, Nikola Tesla theorised that radio could be used to contact alien life. In 1899 he observed signals thought to be from Mars and the U.S. declared a ”National Radio Day” between August 21 and 23 1924, to allow scientists to listen for transmissions from the red planet.
Present Studies include ground and space-based telescope, large radio telescope arrays and distributed computing, but some were afraid of the efforts, and worried that we may alert hostile alien civilisations to our existence… Like Stephen Hawking who cites mankind’s own history of harsh treatment when encountering civilisations with a significant technology gap.