Mercury #universe #space #cosmolog#solarsystem #astronomy #science #explorephysics #astrology

Mercury is the closest planet to the Sun—and one of the most extreme worlds ever discovered ☀️ Temperatures swing from 430°C during the day to –180°C at night because it has almost no atmosphere. Even crazier? One day on Mercury lasts longer than its entire year. This planet doesn’t just orbit the Sun… it punishes anything that visits.