Tag

Inner Core

All articles tagged with #inner core

science11 days ago•11 min saved

Earth’s inner core slows and drifts backward in a 70-year seismic rhythm

Seismic data indicate Earth's solid inner core, long spinning slightly faster than the surface, slowed to match the surface around 2009–2010 and has since fallen behind, effectively drifting backward relative to the rest of the planet. The motion is a relative one (to the mantle) and likely part of a ~70-year oscillation that also influences length of day and the magnetic field; the evidence is indirect and debated, with ongoing work to confirm the oscillation model over the coming decade.

via Space Daily|

#earth-rotation #geophysics #inner-core

science2 months ago•8 min saved

Hidden Layer in Earth's Core Could Rewrite Our Understanding of the Planet's Center

Seismic analyses suggest an innermost inner core about 650 kilometers across, forming a distinct central region with different iron-crystal alignment, which may reflect past cooling events and implies Earth's center is more complex than the traditional four-layer model, potentially prompting a rewrite of core formation history.

via SciTechDaily|

#anisotropy #anu #earth-core

science5 months ago•5 min saved

Earth’s Inner Core Might Be Soft and Superionic, Study Reveals

Lab experiments simulating inner-core conditions suggest iron–carbon alloy enters a superionic state, with mobile light atoms softening the solid and slowing seismic waves, potentially explaining long-standing seismic anomalies and offering new insights into Earth's magnetic field generation.

via The Daily Galaxy|

#geophysics #inner-core #iron-carbon

science6 months ago•3 min saved

Scientists Discover Onion-Like Layers Inside Earth's Core

A new study suggests Earth's inner core is layered like an onion, with variations in seismic wave speeds explained by the distribution of silicon and carbon in iron alloys, revealing a complex, stratified structure deep beneath the surface.

via ScienceAlert|

#earths-core #inner-core #layered-structure

science9 months ago•5 min saved

Scientists Find Carbon May Have Triggered Earth's Core Crystallization and Preserved Magnetic Field

Scientists from Oxford, Leeds, and UCL discovered that carbon played a crucial role in Earth's inner core formation, reducing supercooling requirements and potentially more abundant than previously thought, which impacts our understanding of Earth's magnetic field and interior dynamics.

via Rude Baguette|

#carbon #crystallization #earths-core

science9 months ago•2 min saved

Mysteries of Earth's Inner Core and Its Impact on Gravity Unveiled

A new study suggests that the presence of about 4% carbon in Earth's core allowed the iron to solidify under high pressure and temperature conditions, explaining how the planet's inner core froze and providing insights into Earth's geological history.

via BBC Science Focus Magazine|

#carbon #earths-core #geology

science9 months ago•6 min saved

NASA Confirms Mars Has an Earth-Like Solid Core

Scientists have discovered that Mars has a solid inner core enclosed by a liquid outer core, similar to Earth's internal structure, which provides new insights into the planet's geological history and past magnetic field, helping to explain its evolution and loss of atmosphere.

via SciTechDaily|

#inner-core #mars #nasa-insight

science10 months ago•6 min saved

New Discoveries Reveal Mars's Solid Core and Inner Mysteries

Scientists using NASA's InSight mission have discovered that Mars has a solid inner core surrounded by a liquid outer core, similar to Earth's structure, which has important implications for understanding the planet's evolution and past magnetic field.

via Phys.org|

#core #inner-core #mars

science10 months ago•5 min saved

NASA's Mars Insights Confirm a Solid Inner Core

NASA's InSight mission has discovered that Mars has a solid inner core about 600 km across, contrary to previous beliefs that it was entirely soft, providing new insights into the planet's internal structure and evolution.

via ScienceAlert|

#inner-core #mars #nasa-insight

science1 year ago•2 min saved

Scientists Uncover Surprising Secrets Inside the Moon

Scientists have confirmed that the Moon's inner core is a solid sphere made of iron-like material, reshaping our understanding of its internal structure and magnetic history, using a combination of space mission data and lunar laser-ranging experiments.

via The Daily Galaxy|

#geology #inner-core #lunar-exploration

science1 year ago•3 min saved

Scientists Confirm Moon's Composition

Scientists confirmed that the Moon has a solid inner core similar in density to iron, with an outer fluid layer, supporting the idea of an Earth-like lunar core and providing insights into the Moon's magnetic history and evolution.

via ScienceAlert|

#inner-core #lunar-evolution #moon

science1 year ago•3 min saved

Scientists Confirm Moon's Composition

Scientists confirmed that the Moon has a solid inner core similar in density to iron, with a fluid outer layer, supporting models of an Earth-like lunar interior and providing insights into the Moon's magnetic history and evolution.

via Yahoo|

#inner-core #lunar-evolution #moon

science2 years ago•3 min saved

Climate Change Slows Earth's Spin, Lengthens Days

Climate change is causing Earth's ice caps to melt, leading to a redistribution of mass towards the equator and slowing Earth's rotation, thus lengthening days. This shift, combined with natural tidal braking from the moon, could impact global time-keeping, digital infrastructure, and space travel. Additionally, Earth's inner core has been slowing down for 14 years, further contributing to changes in Earth's rotation.

via Forbes|

#climate-change #earth-rotation #ice-caps

science2 years ago•2 min saved

"Discovery: Solid Metal Ball Discovered in Earth's Core"

Researchers have discovered a solid metal ball in the heart of Earth's innermost core, estimated to be roughly the size of Pluto and at least 400 miles thick. This finding challenges the conventional understanding of Earth's layers and suggests the existence of a fifth layer. Seismologists studied shockwaves from earthquakes to make this discovery and believe that the metal ball may have been formed as a result of a major global tectonic event in the past.

via Supercar Blondie|

#earths-core #inner-core #metal-ball

science2 years ago•2 min saved

"Unprecedented Discovery: Enormous Solid Metal Ball Found at Earth's Core"

Scientists have discovered a massive solid metal ball, known as the "innermost inner core," within Earth's core, which is approximately 800 miles in diameter and makes up nearly one percent of the Earth’s volume. This discovery, made by seismologists at the Australian National University, has provided new insights into the Earth's core and its potential impact on the evolution of life on the planet's surface. The solid metal core is believed to have formed after a significant tectonic event and could hold clues to understanding the evolution of life on Earth.

via UNILAD|

#earths-core #evolution #inner-core