Beneath Earth s surface, nearly 3,000 kilometers down, lies a mysterious layer where seismic waves speed up inexplicably. For ...

A Mysterious Discovery in Earth’s Heart The Earth’s inner core, composed mainly of solid iron and nickel, is one of the most enigmatic regions of the planet.It has long been known that the ...

We don’t even know how old it is. Luckily, mineral physics is bringing us closer to solving the mystery. The inner core is responsible for Earth’s magnetic field, which acts like a shield, protecting ...

We don’t even know how old it is. Luckily, mineral physics is bringing us closer to solving the mystery. The inner core is responsible for Earth’s magnetic field, which acts like a shield ...

The study also revealed a level of similarity between the lunar core and the Earth’s. The inner core is solid in both cases, while the outer layer is fluid. Their modeling also estimates the radius of ...

We don't even know how old it is. Luckily, mineral physics is bringing us closer to solving the mystery. The inner core is responsible for Earth's magnetic field, which acts like a shield ...

Earth’s inner core is surrounded by an outer core, and the interface between the two, around 5,100 kilometres below the planet’s surface, is a mysterious realm. Previous seismic studies ...

One mystery we haven't solved yet is how the core has "frozen" solid from a molten liquid state in its past. "The Earth’s inner core was once liquid, but has turned solid over time. As the Earth ...

"There are still mysteries about the Earth's outer core that are yet to be solved, which requires multidisciplinary efforts from seismology, mineral physics, geomagnetism and geodynamics," said ...

There have been proposed hypotheses as to how the Moon could have developed a core dynamo. For instance, a 2022 analysis ...

The near-Earth object may have been ejected to space following an impact thousands of years ago. NASA/JPL-Caltech For a brief, but exciting, time last year, Earth had two moons. A small asteroid ...