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science/physics

Hubble observations challenge how radiation escaped the early universe

A new analysis using the Hubble Space Telescope has challenged a leading explanation for how the early universe was reionized. Astronomers had proposed that powerful winds from exploding stars could help radiation escape galaxies and clear the dense fog of hydrogen that filled the universe roughly 13 billion years ago.

Juno Reveals a Complex Plasma Shield Around Jupiter

NASA’s Juno spacecraft has revealed that Jupiter’s magnetic environment protects the planet from the solar wind through a more complex system than previously understood. Rather than relying on a single region, Jupiter’s shield appears to involve powerful plasma waves and multiple shock regions. These features create a

AI Drones Reshape Warfare in Ukraine

Artificial intelligence is increasingly being used in drones deployed in the war between Ukraine and Russia. A report examines how these systems are influencing the course of the conflict, reflecting broader changes in the role of unmanned and autonomous technologies in modern warfare. The available coverage does not specify the

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DOE to Loan $5 Billion for Nuclear Upgrades Linked to Data Centers

The U.S. Department of Energy is awarding Constellation Energy $5 billion in government loans to modernize nuclear reactors. The upgrades are expected to add generating capacity for data centers, with most of the new output already committed to Google, Amazon, and Meta. The arrangement highlights the increasing role of

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Antarctic Sea-Ice Loss Is Reshaping Nearby Ocean Circulation

Antarctic waters are becoming saltier, another visible sign that the loss of sea ice is reshaping ocean circulation near the continent. As sea ice melts, the balance of fresh water entering the Southern Ocean changes. According to the report, this shift is affecting the salt content of nearby waters and

Research Proposes Splitting Black Holes at Extreme Spin

Black holes are generally expected to merge when they collide, producing a more massive object. New research suggests that a sufficiently fast-spinning black hole may instead divide into two. The proposed process would depend on rotation reaching an extreme rate. If confirmed, the finding would introduce a distinct way

AI Fuels Concerns About the Future of Mathematical Research

A disagreement between mathematicians has sparked renewed debate about the potential impact of artificial intelligence on scientific research. The episode highlights an emerging concern: as AI becomes more capable of producing and assessing mathematical work, it may alter established methods of discovery, collaboration, and evaluation. The available report does not