OTD in Space – March 25: Christiaan Huygens Discovers Saturn's Moon Titan

On March 25, 1655, Saturn's moon Titan was discovered by the Dutch scientist Christiaan Huygens (a name that you've probably heard mispronounced as "Hoy-gens"). Titan is the largest moon of Saturn and it was the first of 62 moons to be found orbiting Saturn. Huygens discovered Titan using a telescope he designed himself. While looking at Saturn's rings, he noticed a bright and tiny dot nearby. He suspected it was a moon, but just to be sure, he kept watching it for a few days. He confirmed that the tiny speck was orbiting Saturn and therefore must have been a moon. More than 300 years later, the European Space Agency sent a spacecraft to Titan and named it after him.