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Sciencealert

The latest science news. Publishing independent, fact-checked reporting on health, space, nature, technology, and the environment.

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  • Sep 13, 2025earliest in window
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News

ScienceAlert
sciencealert.com > scientists-find-a-razor-sharp-line-of-earthquakes-hidden-beneath-alaska

Scientists Find a Razor-Sharp Line of Earthquakes Hidden Beneath Alaska

2+ mon, 1+ week ago   (230+ words) Back in 2002, a massive earthquake in central Alaska was felt as far away as Seattle....

ScienceAlert
sciencealert.com > a-481-meter-tsunami-struck-alaska-and-it-was-a-terrifying-near-miss

A 481-Meter Tsunami Struck Alaska, And It Was a Terrifying Near Miss

3+ mon, 4+ week ago   (256+ words) As Earth's climate warms, glaciers are retreating....

sciencealert.com
sciencealert.com > earths-core-seems-to-be-wrapped-in-layers-like-an-onion-study-finds

Earth's Core Seems to Be Wrapped in Layers Like an Onion, Study Finds

8+ mon, 2+ week ago   (518+ words) Seismic waves passing through Earth's inner core have revealed much about our planet's iron center: how it's changing shape, reversing its spin, is weirdly textured, and contains an unusual state of matter. Now, a new study seeking to explain anomalous…...

sciencealert.com
sciencealert.com > mysterious-state-of-matter-discovered-flowing-inside-earths-core

Mysterious State of Matter Discovered Flowing Inside Earth's Core

8+ mon, 2+ week ago   (704+ words) By firing tiny projectiles of iron-carbon alloy from a high-speed cannon, scientists have finally demonstrated that a weird part-solid, part-liquid-like state thought to exist inside Earth's inner core is indeed possible. This superionic state of matter would neatly explain some…...

ScienceAlert
sciencealert.com > its-official-scientists-confirmed-what-is-inside-our-moon

It's Official: Scientists Confirmed What Is Inside Our Moon

9+ mon, 4+ week ago   (599+ words) Well, the verdict is in. The Moon is not made of green cheese after all. A thorough investigation published in May 2023 found that the inner core of the Moon is, in fact, a solid ball with a density similar to…...

ScienceAlert
sciencealert.com > geologists-discover-remnants-of-proto-earth-deep-underground

Geologists Discover Remnants of 'Proto Earth' Deep Underground

10+ mon, 3+ week ago   (497+ words) Earth was a broiling mass of lava and rock before it took the form that it has today, and scientists have for the first time discovered traces of that very early 'proto Earth', hidden away in the deepest and oldest…...

ScienceAlert
sciencealert.com > this-week-in-science-worlds-second-largest-diamond-fishy-finger-origins-and-more

This Week in Science: World's Second-Largest Diamond, Fishy Finger Origins, And More!

11+ mon, 2+ week ago   (432+ words) This week in science: The world's second-largest diamond is being evaluated; the genetic secrets of a 117-year-old woman are uncovered; the bizarre origin story of our fingers; and much more! Scientists have found that a molecule called AP503 can strengthen bones,…...

ScienceAlert
sciencealert.com > this-rock-is-not-from-earth-and-we-can-finally-reveal-its-story

This Rock Is Not From Earth, And We Can Finally Reveal Its Story

11+ mon, 2+ week ago   (498+ words) With help from amateur astronomers, scientists tracked how an asteroid travelled from space, broke up in Earth's atmosphere and sent fiery fragments shooting to the ground, gathering new information about how these space rocks disintegrate. Asteroid 2023 CX1 briefly lit up the…...

ScienceAlert
sciencealert.com > the-shape-of-earths-core-could-be-explained-by-one-mystery-ingredient

The Shape of Earth's Core Could Be Explained by One Mystery Ingredient

11+ mon, 3+ week ago   (896+ words) The iron-rich core at the centre 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, it also influences plate tectonics which…...

ScienceAlert
sciencealert.com > 78-million-years-ago-an-asteroid-hit-earth-then-life-grew-in-the-crater

78 Million Years Ago, an Asteroid Hit Earth. Then Life Grew in The Crater

11+ mon, 3+ week ago   (730+ words) 78 million years ago, a 1.6 km asteroid slammed into what is now Finland, creating a crater 23 km (14 mi) wide and 750 km deep. The catastrophic impact created a fractured hydrothermal system in the shattered bedrock under the crater. There's evidence from other impact…...