Mercury, the closest planet to the Sun, has an orbital and rotational system that significantly differs from Earth’s, resulting in a unique climate with no conventional seasons. Its axial tilt is almost perpendicular at just about 0.034 degrees, meaning it doesn’t experience the axial tilt that on Earth leads to varying sunlight angles and resultant seasonal changes. Instead of distinct seasons, Mercury’s primarily elliptical orbit creates an environment where the sun’s intensity significantly varies throughout the Mercurian year. Because Mercury rotates three times on its axis for every two orbits around the Sun, each Mercurian day (sunrise to sunrise) lasts about 176 Earth days, and its year is only about 88 Earth days. These factors, combined with the lack of a substantial atmosphere, mean that while Mercury experiences dramatic temperature fluctuations—from around 430°C (800°F) during the day to -180°C (-290°F) at night—these changes do not correspond to seasonal patterns as understood on Earth. In summary, Mercury’s conditions do not create measurable seasons similar to those on Earth.