Earth's mysterious core is weirder than you think, and we're only just beginning to uncover its secrets

Tech Insider
An artist's impression of what the layers inside of the earth could look like. It shows the Earth quartered to reveal the crust, upper and lower mantle, and the outer and inner core, which are glowing bright at the center of the planet.
An illustration of Earth's core.

iStock / Getty Images Plus

Subscribe to geosciences