A team of astrophysicists looking at data from the Cassini spacecraft’s tour of Saturn have estimated a new size for the planet’s core. Studying gravitational effects on the icy rings, the team ...

The iron-rich core at the center of our planet has been a crucial part of Earth's evolution. The core not only powers the magnetic field which shields our atmosphere and oceans from solar radiation, ...

Deep beneath our feet lies one of the most important parts of our planet: Earth’s core. Hidden thousands of kilometers below the surface, this massive sphere is made primarily of iron and nickel. At ...

NASA researchers recently discovered the largest solid core ever found in an extrasolar planet, and their discovery confirms a planet formation theory. “For theorists, the discovery of a planet with ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Life on Earth became possible when the planet's solid inner core ...