Scientists have discovered what phantom element might be in the Earth’s core. The mystery material that makes up a significant proportion of our planet’s core has left the experts scratching their heads for decades. After recreating the scorching temperatures and pressures found deep inside our planet, Japanese scientists believe the most likely candidate for the mystery material is silicon. The rest of the core is mostly made of iron and nickel. The find could help us understand what Earth was like after it formed 4.5 billion years ago - and may shine a light on how we came to be. Lead researcher Eiji Ohtani from Tohoku University told BBC News: “We believe that silicon is a major element -