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New evidence from Yinshan Block reveals Earth's early supercontinent cycles

A new study published in Precambrian Research by Jawad Shabbir, a Ph.D. student at Peking University's School of Earth and Space Sciences under Professor Song Shuguang, addresses a critical yet poorly understood period in Earth history. The Archean–Proterozoic transition witnessed global tectonic evolution, cratonization, glaciation, banded iron formations and the Great Oxygenation Event—events linked to supercontinent formation. Focusing on the Yinshan Block within the North China Craton...

Phys.org 2d ago

CBS officially fires 60 Minutes reporter who went scorched earth on Bari Weiss early in the week: report

Sharyn Alfonsi’s contract expired over the weekend, making her an at-will employee until she was fired, according to a report

The Independent World 13d ago

How Jupiter may have redirected life's ingredients toward Earth 4.5 billion years ago

How Jupiter may have redirected life's ingredients toward Earth 4.5 billion years ago Robert Egan Associate Editor NASA-supported scientists have provided new information about how the early Earth may have acquired some elements necessary for the planet to become habitable. They also suggest a new role for Jupiter in the distribution of these elements throughout the young solar system. The study, published in Science Advances, examines this history by looking at the ratio of phosphorus to...

Phys.org 6d ago

Dynamic Breaking of Mirror Symmetry in Spin-Dependent Electron Transport through Chiral Media Causes Enantiomeric Excesses

arXiv:2606.01656v1 Announce Type: new Abstract: Two fundamental questions have puzzled scientists for more than 150 years. How did life become homochiral and why was this specific handedness selected. Recently, it has been shown that homochirality could have emerged through the enantioselective interactions of molecules with magnetic substrates due to the asymmetric crystallization of an RNA precursor on a magnetite substrate, abundant on early Earth.

arXiv Physics 8d ago

Cosmic bombardment may have opened Earth's crust for prebiotic chemistry

Cosmic bombardment may have opened Earth's crust for prebiotic chemistry Gaby Clark Scientific Editor Robert Egan Associate Editor Asteroids and planetesimals regularly bombarded Earth between about 4.6 billion and 3.5 billion years ago, during the Hadean and Archean eons. Because few rocks today are more than 4 billion years old, our understanding of the planet's environment during that time is limited. However, samples from the moon and its cratered surface hint at the period's rate of...

Phys.org 1d ago

Can You Stop a Hypersonic Missile?

Can You Stop a Hypersonic Missile? The headlines say yes. Patriot crews shot down a Kinzhal over Kyiv on the night of May 4, 2023.

Hacker News 9d ago

Dinosaur-killing asteroid impact site stayed hot for millions of years

The asteroid strike that wiped out the dinosaurs hit with such force that it took at least 8 million years for the impact site to cool down, creating a warm underground ecosystem where microscopic life thrived. The Chicxulub asteroid, which collided with Earth 66 million years ago at what is now Mexico, is thought to have been as large as 15 kilometres in diameter. The strike caused so much climate chaos that it wiped out three-quarters of species on Earth.

New Scientist 1d ago

Super Typhoon Sinlaku triggered atmospheric gravity waves visible from space

Super Typhoon Sinlaku triggered atmospheric gravity waves visible from space A record-early super typhoon sent giant atmospheric ripples into near-space, offering scientists a new clue for tracking powerful storms. - Date: - June 3, 2026 - Source: - NASA Earth Observatory - Summary: - One of the most powerful typhoons ever recorded this early in the Pacific season did more than unleash flooding and extreme winds—it sent enormous ripples all the way into the upper atmosphere.

Science Daily 7d ago

Silent volcanic gas buildup revealed six months before La Palma eruption

Silent volcanic gas buildup revealed six months before La Palma eruption Lisa Lock Scientific Editor Robert Egan Associate Editor Researchers at Geosciences Barcelona (GEO3BCN-CSIC) have developed a novel way to monitor the silent accumulation of volcanic gases beneath Earth's surface using seismic ambient noise. The results could significantly improve early warning systems for volcanic eruptions. The continuous but invisible release of gases from underground is notoriously difficult to...

Phys.org 1d ago

Dino-killing asteroid may have fueled underground life for 8 million years

Dino-killing asteroid may have fueled underground life for 8 million years Gaby Clark Scientific Editor Robert Egan Associate Editor The asteroid that caused the extinction of the dinosaurs also created an underground environment suited to supporting new life, and new research suggests it lasted for millions of years longer than previously suspected. The finding has surprised the international team of researchers behind it, who came to their conclusions by pairing sophisticated new analysis...

Phys.org 1d ago