In the 1970s and 1980s, they released a newsletter called the Flat Earth News, which often debated NASA and other space agencies. When the first images of the earth taken from space were released, Shenton claimed that they were false. In 1956, Samuel Shenton created a more modern version of the Flat Earth Society, to collect a variety of followers of Rowbowtham's experiments.

He took his results as disproving the theory of a round earth, but future scientists have said that the results he obtained could be accounted for by the parallax effect.

In the experiment, Rowbowtham attempted to measure the curvature of the earth by observing the curvatures at a local river. Rowbowtham, who wrote a book named Earth Not a Globe, started the modern movement by debating scientists publicly and accumulating followers. People have believed that the Earth is flat since the beginning of humanity, but the modern Flat Earth hypothesis stemmed from an experiment called the Bedford Level Experiment, conducted in the mid-1800s by a man named Samuel Rowbotham.

Flat earth society globe tweet