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Wednesday, December 10, 2025
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Astronauts Return After Space Debris Delays China Space Mission

by Lucas Fernandez – World Editor November 14, 2025
written by Lucas Fernandez – World Editor

Chinese Astronauts Safely Return to Earth After Months Aboard Tiangong Space Station

JIUQUAN, China – A Shenzhou-21 spacecraft carrying three Chinese astronauts landed safely​ in the ‌Gobi Desert on Saturday, concluding a nearly six-month mission aboard the⁤ tiangong space ​station.The return marks the‌ completion of China’s ⁣longest crewed space mission to date, furthering the nation’s ambitions in‍ space exploration.

The astronauts, who launched to the station⁣ in April, were reported to⁤ be ⁤”in good condition,” according to the China Manned Space ‍Agency. Their⁣ return is a critical step in China’s ongoing program to maintain a continuous human presence ⁢in orbit and prepare for more ambitious projects, including a planned crewed lunar landing by 2030.​ The mission also⁣ included ​biological experiments, such as studying⁤ the effects of‌ weightlessness and confinement on mice.

China’s space program has demonstrated consistent advancement since its first crewed⁤ mission in 2003. The ‌Tiangong space station, fully operational ‌as 2022, represents a significant achievement, allowing China to conduct independent space research and progress without‍ relying ‌on international collaborations like the International Space Station.

The Shenzhou-21 mission brought four ⁢mice to the space station to ⁤study how they would be affected by weightlessness and confinement. This research contributes to understanding the long-term effects of space​ travel on living organisms, a crucial ⁣factor for‌ future extended missions.

November 14, 2025 0 comments
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Health

CT Scan Risks: Cancer Link and Medical Benefits Explained

by Dr. Michael Lee – Health Editor November 13, 2025
written by Dr. Michael Lee – Health Editor

CT Scans: Balancing Life-Saving Benefits with Potential Risks

CT scans are becoming increasingly common, offering doctors a vital window into the human⁢ body and saving countless lives. However, these scans utilize low-dose radiation, prompting some⁣ scientists to investigate a potential link to increased cancer risk.

While the individual risk is considered extremely small – and shouldn’t deter medically necessary scans – growing usage is raising concerns. CT examinations in the US have jumped over 30% since 2007, with over ⁢93 million scans performed in 2023‍ alone. A recent ​study,led by epidemiologist​ Rebecca Smith-Bindman at the University of California,estimates ⁤that⁤ radiation from these scans could theoretically contribute to around 5% of all new cancer diagnoses – potentially⁢ 103,000 future cases.

It’s vital to note this estimate draws parallels to radiation exposure from events like Hiroshima, ⁣where ⁤individuals received doses comparable to multiple CT scans.‍ However, the radiation levels in medical scans are significantly lower, and it’s unclear if the effects are directly‍ comparable.

The Benefits Remain Significant

Experts overwhelmingly ​agree that, notably for those already⁣ ill, the advantages‌ of ⁢CT⁤ scans far outweigh the potential risks. “The chance‍ of damage from the disease itself is much greater,” explains CT imaging expert Cynthia McCollough. Studies show, ⁢such as, that ⁤lung cancer patients receiving CT scans were‌ 20% less likely to die compared to those​ who only had X-rays.

Though,researchers are particularly mindful of the potential impact on children and young people,who appear​ more vulnerable to radiation’s effects. ​This highlights the importance of ⁤avoiding unneeded scans and exploring alternative imaging techniques like ultrasound or MRI whenever possible.

As radiologist Naomi gibson emphasizes,”We ​must ⁣remain vigilant about the effects of long-term‍ radiation exposure,but CT scans are still invaluable when medically justified.” The key lies in responsible‍ use, ensuring these powerful tools are ‍employed when thier ‍benefits clearly outweigh the potential, albeit small, risks.

November 13, 2025 0 comments
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Technology

British Churches Adopt Heat Pumps for Sustainability

by Rachel Kim – Technology Editor November 13, 2025
written by Rachel Kim – Technology Editor

Norwich Church Pioneers green Heating in Historic Building

A​ 15th-century church in Norwich is among a growing number of⁤ British community buildings embracing heat pump technology as ⁢part of a push towards decarbonization. St.Peter Mancroft⁤ Church ⁤recently installed two⁤ air source heat pumps connected to its Edwardian cast iron radiator system, achieving a Coefficient⁢ of Performance (COP) of 4.The move comes ​as⁢ churches, village halls, covered markets, and transport hubs across‌ the UK explore renewable energy solutions ⁣like⁢ solar panels, LED ‌lighting, ⁤and electric heating.

“The church‍ decided this was ⁢a good time to try and commit ⁢to it,” said ⁤Nicholas Jackson, of Nicholas Vanburgh Ltd, the architectural design‍ firm involved, who also⁤ serves as the churchS fabric officer. ‌While a gas‌ boiler remains as ⁢a ‌backup, the church is optimistic about ‍the ⁤new system’s performance, though its⁣ ability to cope ‍with extremely‍ cold whether is still being assessed.

Reverend Edward Carter, the vicar, highlighted the church’s commitment‌ to environmental stewardship,‌ pointing to ⁤the “Earth Chapel” within ⁣the building.”We’re trying to say something to the City‌ of Norwich here,⁤ and maybe to⁤ the wider world,” he stated.

The initiative reflects a broader spiritual motivation for environmental action, with ⁣some Christians believing‌ scripture calls for planetary care.”We’re not jumping on the bandwagon,” said Mark Knott, emphasizing the long-standing religious basis for⁣ environmental concern.”This has been a​ message‍ for 2,000 years.” Resources for similar projects⁤ are available through organizations‍ like ACRE (Action⁢ with Rural Communities England).

November 13, 2025 0 comments
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Technology

Maker bitten by shark seeks to return to research site

by Rachel Kim – Technology Editor November 12, 2025
written by Rachel Kim – Technology Editor

Costa Rica ‌Biologist,‌ Weeks After​ Shark Attack, ‍Plans Return Dive to Same Location

COCOS ISLAND, COSTA RICA – Mauricio‍ Hoyos, a ⁤marine⁢ biologist studying shark behavior off the coast ‌of ⁤Costa Rica, intends to dive again at Roca Sucia, the site of⁣ a ⁤recent shark attack that ⁢severely injured him. Hoyos, who was attacked on September‍ 27th while leading a research mission to ​acoustically‌ tag ‍sharks, expressed no fear or resentment⁣ towards the animal and even hopes to encounter‍ it again during a planned trip⁣ in January.

Hoyos was approximately⁢ 40 meters deep with his team when‌ the attack occurred. They had been alerted to the presence of a large ⁢shark by tourists ‍and Hoyos decided ‌to‌ attempt to tag the specimen. The shark, a ‌female estimated to be between 3 and 3.5 meters ⁤long, unexpectedly turned and⁤ attacked, clamping its jaws onto Hoyos’ head.

“she ⁤turned around and ⁢stared at me,” Hoyos⁤ recounted ⁣to the ⁤BBC.”I ‌lowered my head, and I felt​ his lower⁤ jaw sink into my ​cheek and ‌his upper jaw into my skull.I was ⁤there, I​ guess, for a second, no more, inside‍ his ​jaw, ⁤and then ⁣he just‍ opened it again.”

Despite sustaining deep wounds ​and having his oxygen tube​ crushed, Hoyos was able to ascend to the ‌surface and receive medical attention. Remarkably, his wounds did not become infected, ‌a fact doctors found “incredible.”

Hoyos, who has studied ⁣sharks for over three decades, views⁢ the attack as a normal animal response to a perceived ⁣threat. He plans to return to Cocos Island from ⁢January 20th to ‍27th, specifically to dive ​at‍ Roca Sucia, not seeking retribution, but ⁢to further his understanding ⁣of shark behavior.”I’m going​ to dive there,” he stated. “I feel an even greater ‌respect⁤ for sharks.”

November 12, 2025 0 comments
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Technology

Big Bang: Black Holes & Cosmic Structures Formed Seconds After Creation

by Rachel Kim – Technology Editor November 11, 2025
written by Rachel Kim – Technology Editor

Primordial Universe May Have Forged Black Holes, Exotic Stars in First Moments

Trieste, Italy – November 10, 2025 – A new theoretical inquiry suggests that the universe, within the fleeting instant following the Big Bang, may have been a crucible for the creation of black holes, boson stars, ⁢and a previously hypothesized class of objects dubbed “cannibal stars.” Researchers at the‍ international School of​ Advanced​ Studies (SISSA) in trieste have modeled particle interactions in the extreme conditions of the ⁣early universe, revealing a potential pathway ⁣for the spontaneous⁤ formation of these celestial bodies.

This⁤ research, published this week, offers a glimpse into the universe’s earliest epochs and could reshape our understanding of the seeds from which larger structures-galaxies and the supermassive black holes at their ​centers-eventually grew. The findings address a long-standing question⁣ about the origin of primordial black ‌holes, which are theorized to have formed not from stellar ​collapse, but‍ directly from density fluctuations in the early universe.⁣ Understanding their formation mechanisms‌ is ‌crucial for exploring dark⁢ matter candidates and the universe’s initial conditions.

The study focuses on the​ period instantly after the Big Bang, when the universe‍ was⁢ incredibly hot and dense. As the universe expanded and cooled, high-energy particle collisions ⁢could have ⁢created localized regions of extreme density. According ‌to the SISSA team’s calculations, these conditions were ripe for gravitational collapse, leading to the formation of black holes with⁤ masses potentially ranging from asteroid-sized to several times that of our Sun.

Beyond black holes, the simulations also predict the possibility of boson stars-hypothetical stars composed of bosons, basic particles with integer spin-and “cannibal stars.” Cannibal stars are⁤ theorized to grow by accreting matter ‍from their surroundings at an accelerated rate, potentially becoming important gravitational players‍ in the​ early universe.

“We are exploring a scenario where the very fabric ⁢of spacetime was different in the first second of existence,” explained a SISSA ⁤researcher. “The energy​ densities were so high that the usual rules of stellar ⁣evolution didn’t necessarily apply,opening the door to the creation⁤ of these exotic objects.”

The team’s work relies on ⁣advanced computational modeling and theoretical physics. Future observations, ⁤particularly those searching for gravitational waves or the effects of ⁢primordial⁣ black holes on cosmic microwave background radiation, may provide evidence to‌ support or refute these predictions. The research underscores the ongoing effort to unravel the mysteries of the universe’s infancy and the fundamental laws governing it’s evolution.


Citation: Within a second after the Big Bang, particle interactions may have ⁢created black⁣ holes, boson stars⁤ and cannibal stars (2025,⁣ November 10) retrieved November 10, ⁣2025 from https://phys.org/news/2025-11-big-particle-interactions-black-holes.html. This document is subject to‍ copyright. Apart from any fair dealing for the purpose of private study or research, no part might potentially⁤ be reproduced without the writen permission. The content is provided for information purposes only.

November 11, 2025 0 comments
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Technology

New Glenn Rocket Launch Delay: NASA Mars Mission Impact

by Rachel Kim – Technology Editor November 10, 2025
written by Rachel Kim – Technology Editor

Blue Origin ‌postponed the second launch of‍ its New Glenn rocket on Sunday due to unfavorable weather.⁢ The company now⁢ aims to launch ⁢”no earlier” than Wednesday,November 13th,within ⁤a window of 2:50PM and 4:17PM ‌ET from Cape Canaveral Space Force Station in Florida.

The‍ 320-foot-tall⁤ New Glenn is carrying NASAS twin ESCAPADE (Escape and Plasma Acceleration​ and⁤ Dynamics ‌Explorers) probes on their journey to Mars – NASA’s first Mars-bound mission since the launch of Perseverance and Ingenuity in 2020. The ESCAPADE ‌satellites are expected to reach Mars orbit in 2027 to study the planet’s magnetic field and atmosphere.

This launch is also a critical⁤ test for New Glenn’s reusable first-stage booster.Blue Origin successfully ‍launched New glenn for the first ⁣time in January after multiple delays, but‍ the booster was lost during its attempted landing. A accomplished landing would demonstrate Blue Origin’s capability as⁣ a deep-space launch provider,positioning it to compete with SpaceX and United Launch Alliance.

Blue Origin coordinated with the Federal Aviation Management (FAA) to secure a launch window ​despite recently implemented restrictions prohibiting launches between 6AM and 10PM,⁣ enacted November 10th⁢ to manage air traffic during the government shutdown. The company anticipates⁣ beginning a live webcast of Wednesday’s launch 20 minutes before ‍liftoff.

November 10, 2025 0 comments
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