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Geologists discover the first evidence of 4.5-billion-year-old ‘proto Earth’

Scientists at MIT and elsewhere have discovered extremely rare remnants of “proto Earth,” which formed about 4.5 billion years ago, before a colossal collision irreversibly altered the primitive planet’s composition and produced Earth as we know today. Their findings, reported today in the journal Nature Geosciences, will help scientists piece together the primordial starting ingredients that forged early Earth and the rest of the solar system.

Billions of years ago, the early solar system was a swirling disk of gas and dust that eventually clumped and accumulated to form the earliest meteorites, which in turn merged to form proto Earth and its neighboring planets.

In this earliest phase, Earth was likely rocky and bubbling with lava. Then, less than 100 million years later, a Mars-sized meteorite slammed into the infant planet in a singular “giant impact” event that completely scrambled and melted the planet’s interior, effectively resetting its chemistry. Whatever original material proto Earth was made from was thought to have been altogether transformed.

Astronomers uncover collisional signature of filamentary structures in galactic G34 molecular cloud

Using CO (J=1–0) molecular line data obtained from the 13.7-meter millimeter-wave telescope at the Purple Mountain Observatory’s Delingha Observatory, Sun Mingke, a Ph.D. student from the Xinjiang Astronomical Observatory of the Chinese Academy of Sciences and his collaborators conducted a systematic study of the galactic molecular cloud G34. They revealed the collisional signatures and dynamical mechanisms of filamentary structures in this region. The results are published in Astronomy & Astrophysics.

Star formation is one of the key processes that drive the evolution of galaxies and the . Recent observations and suggest that interactions and collisions between large-scale filamentary structures may play an important role in triggering high-mass .

In this study, the researchers identified two giant filaments, designated F1 and F2, in the G34 region. By analyzing their and velocity field, the researchers found clear evidence of ongoing collisions between the filaments.

Shall we Dance in Free-Space? a Choice of Freedom!

Humanity stands at a crossroads. Our beautiful Earth, cradle of all we know, is straining under the weight of nearly 8.5 billion people. Environmental degradation, social inequity, and resource scarcity deepen by the day. We are reaching the limits of a single-planet civilization. We can face this challenge in two ways. Some will cling to the old patterns—fighting over dwindling resources and defending narrow borders. Others will rise above, expanding into space not to escape Earth, but to renew and sustain it. These pioneers—the Space Settlers —will carry the next chapter of civilization beyond our home planet.

The Humanist Path: Living in Free Space. When people imagine living beyond Earth, they often picture Lunar or Martian colonies. Yet, from a humanist perspective, a better path exists: rotating free space habitats, as envisioned by Gerard K. O’Neill. These are vast, spinning structures orbiting Earth or the Moon, or standing at Lagrange Libration Points, designed to simulate Earth’s gravity and sustain full, flourishing communities. Unlike planetary colonies bound to weak gravity, dust, or darkness, O’Neill habitats offer: 1g simulated gravity to preserve human health; continuous sunlight and abundant solar energy; freedom of movement, as habitats can orbit safely or relocate if needed. More than technical achievements, these habitats embody the Enlightenment spirit—the belief that reason, ethics, and creativity can design environments of dignity, beauty, and freedom.

Freedom and Human Dignity in Space. Freedom is at the heart of humanity’s destiny. Consider a lunar settler who finds his bones too fragile to withstand Earth’s gravity—trapped by biology, after a few years living on the Moon. In contrast, inhabitants of a rotating habitat retain the freedom to return on Earth, at will. Simulated gravity safeguards their health, ensuring that space settlement remains reversible and voluntary. Freedom of movement leads naturally to freedom of culture. In a habitat like “New Gaia”, thousands of people from all nations live together: Russians celebrating Maslenitsa, Indians lighting Diwali lamps, and space-born storytellers sharing ancient myths. New traditions also emerge—festivals, music, and art inspired by life between worlds. These habitats can become beacons of a new Renaissance —a rebirth of cultural and creative freedom beyond the constraints of geography and politics.

Scientists have integrated 2D materials a few atoms thick into a working memory chip for the first time and you can’t tell me this isn’t some prime Star Trek-level tech

Bring me the horizon. Or faster and more power-efficient chips, one of the two.

USTC Realizes Human Near-Infrared Color Vision via Contact Lens Technology-University of Science and Technology of China

A research team led by Prof. XUE Tian and Prof. MA Yuqian from the University of Science and Technology of China (USTC), in collaboration with multiple research groups, has successfully enabled human near-infrared (NIR) spatiotemporal color vision through upconversion contact lenses (UCLs). The study was published online in Cell on May 22, 2025 (EST), and was featured in a News release by Cell Press.

Light-driven reaction leads to advanced hybrid nanomaterial

Scientists are exploring many ways to use light rather than heat to drive chemical reactions more efficiently, which could significantly reduce waste, energy consumption, and reliance on nonrenewable resources.

A team of chemistry researchers at the University of Illinois Urbana-Champaign has been studying plasmon-induced resonance energy transfer (PIRET)—conveying energy from a tiny metal particle to a semiconductor or molecule without the need for any physical contact.

“If you’d like to do chemistry with light, then your first step would be to use that light as efficiently as possible,” said Illinois chemistry professor Christy Landes, who co-leads the research team exploring this . “And one of the most efficient ways to use light is to use plasmonic metal nanoparticles, because they are better than just about any other material at absorbing and scattering light.”

Electrolyte breakthrough could help make next-gen solid-state batteries

A research work conducted by scientists from Japan could help make next-generation solid-state batteries. Researchers from Japan’s Tohoku University have confirmed that the pressure-assisted sintering techniques such as hot pressing (HP) and spark plasma sintering (SPS) were found effective to develop next-generation batteries.

Researchers highlighted that solid-state lithium metal batteries (SSLMBs) are drawing worldwide attention as a next-generation technology that promises higher energy density and greater safety than today’s lithium-ion batteries.

New simulation reveals how Earth’s magnetic field first sparked to life

Geophysicists have modeled how Earth’s magnetic field could form even when its core was fully liquid. By removing the effects of viscosity in their simulation, they revealed a self-sustaining dynamo that mirrors today’s mechanism. The results illuminate Earth’s early history, life’s origins, and the magnetism of other planets. Plus, it could help forecast future changes to our planet’s protective shield.

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