Welcome to Facts & Mysteries, your premier destination for mind-bending facts, untold histories, and gripping documentary stories from the far reaches of space to the deepest corners of the unknown! If you're captivated by cosmic enigmas and the hidden truths of our solar system, prepare for an extraordinary journey.br In this deep dive, we explore Mercury, the smallest planet and the closest world to our Sun. Often overshadowed by its larger neighbors, Mercury holds a trove of ancient astronomical secrets and extreme planetary facts that will astonish you. Discover why this tiny, rocky planet is a paradox of intense heat and hidden ice, boasting the most extreme temperature swings in our solar system.br We delve into the fascinating history of Mercury's observation, from its earliest sightings by ancient civilizations to the groundbreaking missions of Mariner 10 and MESSENGER, which finally unveiled its heavily cratered surface and surprising geological features.