On 15 December 1612, German astronomer Simon Marius achieved a milestone in astronomical history by becoming the first to observe the Andromeda Galaxy through a telescope.
While the galaxy had been noted as a "nebulous smear" in the night sky by ancient astronomers, Marius's telescopic observation marked a pivotal moment, offering an early insight into the vastness beyond our Milky Way.
His work laid the groundwork for future astronomical studies, even though his discoveries often remained overshadowed by his contemporary, Galileo Galilei. Marius's Andromeda observation stands as a testament to humanity's ceaseless curiosity about the cosmos.
