text: class SpaceAge(object):
      def __init__(self, seconds):
          self.seconds = seconds
  
      def on_earth(self):
          age = self.seconds / (31557600)
          return round(age, 2)
  
      def on_mercury(self):
          age = self.seconds / (31557600 * 0.2408467)
          return round(age, 2)
  
      def on_venus(self):
          age = self.seconds / (31557600 * 0.61519726)
          return round(age, 2)
  
      def on_mars(self):
          age = self.seconds / (31557600 * 1.8808158)
          return round(age, 2)
  
      def on_jupiter(self):
          age = self.seconds / (31557600 * 11.862615)
          return round(age, 2)
  
      def on_saturn(self):
          age = self.seconds / (31557600 * 29.447498)
          return round(age, 2)
  
      def on_uranus(self):
          age = self.seconds / (31557600 * 84.016846)
          return round(age, 2)
  
      def on_neptune(self):
          age = self.seconds / (31557600 * 164.79132)
          return round(age, 2)
  