Jupiter and Saturn, the two largest planets in our solar system, will be very close to each other, as if they overlap to create a “double planet.”. The last time such phenomena appeared was in the Middle Ages – almost 800 years ago. < / P > < p > some people associate it with the legendary “star of Bethlehem”, which guides three wise men in the birth story of the Bible. To celebrate the winter solstice and the “great conjunction” that took place on the same day, Google created an animated doodle that showed Saturn “slapping” Jupiter as it glided through the orbit of the solar system. < / P > < p > when two planets meet in the night sky, it is called a combination. From our point of view, the two planets are very close, but they are actually 450 million miles apart. < / P > < p > < p > “Jupiter meets Saturn” occurs only once every 19.6 years, but this is the closest observed conjunction event between the two since 1226. They were so close in 1623, but they couldn’t be seen with the naked eye at that time. After 12 years, “world class Super project” Shantou Bay Tunnel ushers in a historic breakthrough today