ギズモード・ジャパンMay 17

ストーンヘンジのような古代構造物、ミシガン湖の底で発見される
https://www.gizmodo.jp/2026/05/an-ancient-structure-resembling-stonehenge-has-been-discovered-at-the-bottom-of-lake-michigan-qih.html

#gizmodo #SCIENCE_NEWS

ストーンヘンジのような古代構造物、ミシガン湖の底で発見される

<small>2025年5月25日の記事を編集して再掲載しています。</small>イギリスのストーンヘンジよりも4,000年古い！2007年、ノースウェスタン・ミシガン大学の水中考古学の教授、マーク・ホリー博士がミシガン湖のグランド・トラバース湾あたりの湖底調査を行なっていたところ、水深約12mのところに不思議な円形の配列をした巨石モニュメントを偶然発見。｢ミシガンのストーンヘンジ｣と名付けら

ギズモード・ジャパン
 Hacker NewsFeb 2
Geologists may have solved mystery of Green River's 'uphill' route
https://phys.org/news/2026-01-geologists-mystery-green-river-uphill.html
#ycombinator #Science #Physics_News #Science_news #Technology_News #Physics #Materials #Nanotech #Technology
Geologists may have solved mystery of Green River's 'uphill' route

New research may have solved an American mystery which has baffled geologists for a century and a half: How did a river carve a path through a mountain in one of the country's most iconic landscapes? Scientists have long sought an answer to this question of how the Green River, the largest tributary of the Colorado River, managed to create a 700-meter-deep canyon through Utah's 4km-high Uinta Mountains instead of simply flowing around them. The question is particularly confounding because, while the Uinta Mountains are 50 million years old, the Green River has been following this route for less than 8 million years.

Phys.org
 Hacker NewsFeb 1
Aging muscle stem cells shift from rapid repair to long-term survival
https://phys.org/news/2026-01-sprint-marathon-aging-muscle-stem.html
#ycombinator #Science #Physics_News #Science_news #Technology_News #Physics #Materials #Nanotech #Technology
Sprint or marathon? Aging muscle stem cells shift from rapid repair to long-term survival

Aging muscles heal more slowly after injury—a frustrating reality familiar to many older adults. A UCLA study conducted in mice reveals an unexpected cause: Stem cells in aged muscle accumulate higher levels of a protein that slows their ability to activate and repair tissue, but helps the cells survive longer in the harsh environment of aging tissue.

Phys.org
 Hacker NewsJan 19
Mammals have evolved into ant eaters 12 times since the dinosaur age – study (2025)
https://phys.org/news/2025-07-mammals-evolved-ant-eaters-dinosaur.html
#ycombinator #Science #Physics_News #Science_news #Technology_News #Physics #Materials #Nanotech #Technology
Mammals have evolved into ant eaters 12 times since the dinosaur age, study finds

Mammals have developed some unusual eating habits over the past 100 million years, but a new study has uncovered the surprising lengths to which some have gone to satisfy one of the more peculiar—a taste for ants and termites.

Phys.org
 Hacker NewsJan 19
Mammals have evolved into ant eaters 12 times since the dinosaur age – study
https://phys.org/news/2025-07-mammals-evolved-ant-eaters-dinosaur.html
#ycombinator #Science #Physics_News #Science_news #Technology_News #Physics #Materials #Nanotech #Technology
Mammals have evolved into ant eaters 12 times since the dinosaur age, study finds

Mammals have developed some unusual eating habits over the past 100 million years, but a new study has uncovered the surprising lengths to which some have gone to satisfy one of the more peculiar—a taste for ants and termites.

Phys.org
 Hacker NewsJan 19
Mammals have evolved into ant eaters 12 times since the dinosaur age,study finds
https://phys.org/news/2025-07-mammals-evolved-ant-eaters-dinosaur.html
#ycombinator #Science #Physics_News #Science_news #Technology_News #Physics #Materials #Nanotech #Technology
Mammals have evolved into ant eaters 12 times since the dinosaur age, study finds

Mammals have developed some unusual eating habits over the past 100 million years, but a new study has uncovered the surprising lengths to which some have gone to satisfy one of the more peculiar—a taste for ants and termites.

Phys.org
 ギズモード・ジャパンJan 13

NASAで初めて。クルーの体調不良により予定より早く帰還へ
https://www.gizmodo.jp/2026/01/nasas-first-iss-medical-evacuation-is-happening-this-week-heres-what-we-know.html

#gizmodo #SCIENCE_NEWS

NASAで初めて。クルーの体調不良により予定より早く帰還へ

無事に帰ってきて、地球でしっかり治療してほしいですね！国際宇宙ステーション（ISS）に滞在している宇宙飛行士の1人に健康上の問題が生じたため、予定より早く地球へ帰還することになりました。これは国際宇宙ステーションの運用史上、初めてのケースです。SpaceXのCrew-11には、NASAの宇宙飛行士ゼナ・カードマン氏とマイク・フィンケ氏、日本の宇宙飛行士である油井亀美也氏、そしてロシアの宇宙飛行士

ギズモード・ジャパン
 Hacker NewsJan 3
Einstein Probe detects an X-ray flare from nearby star
https://phys.org/news/2025-12-einstein-probe-ray-flare-nearby.html
#ycombinator #Science #Physics_News #Science_news #Technology_News #Physics #Materials #Nanotech #Technology
Einstein Probe detects an X-ray flare from nearby star

Using the Einstein Probe (EP), astronomers have detected a new X-ray transient event, which turned out to be an X-ray flare from the star PM J23221-0301 located about 150 light years away. The finding was reported in a research paper published December 18 on the arXiv preprint server.

Phys.org
 Hacker NewsDec 24
New reactor produces clean energy and carbon nanotubes from natural gas
https://phys.org/news/2025-12-reactor-energy-carbon-nanotubes-natural.html
#ycombinator #Science #Physics_News #Science_news #Technology_News #Physics #Materials #Nanotech #Technology
New reactor produces clean energy and carbon nanotubes from natural gas

Scientists from the University of Cambridge have developed a new reactor that converts natural gas (a common energy source primarily composed of methane) into two highly valuable resources: clean hydrogen fuel and carbon nanotubes, which are ultralight and much stronger than steel.

Phys.org
 Hacker NewsDec 24
'Dracula's Chivito': Hubble reveals largest birthplace of planets ever observed
https://phys.org/news/2025-12-chaotic-dracula-chivito-hubble-reveals.html
#ycombinator #Science #Physics_News #Science_news #Technology_News #Physics #Materials #Nanotech #Technology
The chaotic 'Dracula's Chivito': Hubble reveals largest birthplace of planets ever observed

Astronomers using NASA's Hubble Space Telescope have imaged the largest protoplanetary disk ever observed circling a young star. For the first time in visible light, Hubble has revealed the disk is unexpectedly chaotic and turbulent, with wisps of material stretching much farther above and below the disk than astronomers have seen in any similar system. Strangely, more extended filaments are only visible on one side of the disk.

Phys.org