Earth at Perihelion is observed on January 3, when the planet reaches the point in its orbit closest to the Sun. This event occurs two weeks after the December Solstice and is a regular part of Earth's revolution around the Sun. While the difference in distance does not significantly affect weather patterns—resulting in winter in the northern hemisphere and summer in the southern hemisphere—it is still a day to celebrate the Sun, which is essential for life on Earth. The term "Perihelion" is derived from Greek, meaning "near the Sun," and contrasts with "Aphelion," the point when Earth is furthest from the Sun, occurring during the July solstice. Understanding this planetary phenomenon highlights the Sun's crucial role in sustaining life through processes like photosynthesis.