Based on current research, it can be concluded that Mercury has a huge dense iron core due to the Sun's magnetic field and because of it's proximity to the Sun.
Previously, scientists had suggested that the dense iron core of Mercury was due to collisions which blew away most of Mercury's rocky mantle leaving behind the big, dense, metal core inside.
New research has disputed this theory, instead it has been suggested that the density, mass and iron content of Mercury was influenced by its distance from the Sun's magnetic field during the formation of planets.
Planets closer to the Sun had more dense iron cores due to the Sun's magnetic field.
Therefore, it can be concluded that Mercury has a huge dense iron core due to the Sun's magnetic field and because of it's proximity to the Sun.
Learn more about about the Mercury planet at: https://brainly.com/question/1088242
