"Unveiling the Forgotten World of Planet Vulcan: Einstein's Solar System Erasure"
In the 19th century, astronomer Urbain Le Verrier proposed the existence of a planet called Vulcan to explain the irregularities in Mercury's orbit. Despite reported observations, Vulcan was never conclusively seen. The planet's existence was eventually debunked by Einstein's theory of general relativity, which explained Mercury's orbit without the need for an additional planet.