国产精品美女一区二区三区-国产精品美女自在线观看免费-国产精品秘麻豆果-国产精品秘麻豆免费版-国产精品秘麻豆免费版下载-国产精品秘入口

Set as Homepage - Add to Favorites

【sex addict mom videos】Enter to watch online.Scientists just excavated an unprecedented specimen from Antarctica

Source： Editor：focus Time：2025-07-05 12:01:53

At an extremely remote Antarctic outpost,sex addict mom videos scientists have unearthed a pristine sample of our planet's history.

It's an ice core 2,800 meters, or some 1.7 miles, long. But it's not just the length that's so significant. The ice contains preserved pockets of Earth's air from some 1.2 million years ago, if not more. Previous ice cores provided direct evidence of our planet's climate and environment from up to 800,000 years ago.

So, this is a giant leap. The team drilled so deep they reached the continent's bedrock.

You May Also Like

"We have marked a historic moment for climate and environmental science," Carlo Barbante, a polar scientist and coordinator of the ice core campaign called "Beyond EPICA - Oldest Ice," said in a statement.

SEE ALSO: If a scary asteroid will actually strike Earth, here's how you'll know

An international group of researchers excavated the ice at Little Dome C Field Camp in Antarctica, located 10,607 feet (3,233 meters) above sea level. They beamed radar down into the subsurface and used computer modeling of the ice flow to determine where this ancient ice was likely to be. And they were right.

Mashable Light Speed Want more out-of-this world tech, space and science stories? Sign up for Mashable's weekly Light Speed newsletter. By clicking Sign Me Up, you confirm you are 16+ and agree to our Terms of Use and Privacy Policy. Thanks for signing up!

This was no easy feat. Atop the Antarctic plateau, summers average minus-35 degrees Celsius, or minus-31 degrees Fahrenheit.

The location of Little Dome C research base in Antarctica.The location of Little Dome C research base in Antarctica. Credit: Beyond EPICA / EU Ice core drilled from the recent Beyond EPICA - Oldest Ice expedition. Ice core drilled from the recent Beyond EPICA - Oldest Ice expedition. Credit: Scoto © PNRA / IPEV

Although paleoclimatologists, who research Earth's past climate, have reliable methods of indirectly gauging our planet's deep past — with proxies such as fossilized shells and compounds produced by algae — direct evidence, via direct air, is scientifically invaluable. For example, past ice cores have revealed that the heat-trapping carbon dioxide levels in Earth's atmosphere today have skyrocketed — they're the highest they've been in some 800,000 years. It's incontrovertible evidence of Earth's past.

Scientists expect this even older ice core, however, will reveal secrets about a period called the Mid-Pleistocene Transition, lasting some 900,000 to 1.2 million years ago. Mysteriously, the intervals between glacial cycles — wherein ice sheets expanded over much of the continents and then retreated — slowed down markedly, from 41,000 years to 100,000 years.

"The reasons behind this shift remain one of climate science's enduring mysteries, which this project aims to unravel," the drilling campaign, which was coordinated by the Institute of Polar Sciences of the National Research Council of Italy, said in a statement.

Now, the drilling is over. But the campaign to safely transport the ice back to laboratories, and then scrutinize this over-million-year-old atmosphere, has begun.

"The precious ice cores extracted during this campaign will be transported back to Europe on board the icebreaker Laura Bassi, maintaining the minus-50 degrees Celsius cold chain, a significant challenge for the logistics of the project," explained Gianluca Bianchi Fasani, the head of ENEA (National Agency for New Technologies, Energy, and Sustainable Economic Development) logistics for the Beyond EPICA expedition.

These historic ice cores will travel in "specialized cold containers" as they ship across the globe, far from the depths of their Antarctic home.

0.2555s , 14241.9765625 kb

Copyright © 2025 Powered by 【sex addict mom videos】Enter to watch online.Scientists just excavated an unprecedented specimen from Antarctica,  

Sitemap

Top 主站蜘蛛池模板： 91精品国产丝袜在线拍 | 91精品国产91久久久久久青草 | 99久久久国产一区二区三区 | 午夜成人免费视频 | 国产av精品一区二区三区小说小说最新章节免费阅读 | 97精品久久天干天天天按摩 | 91短视频在线观看免费最新 | 91精品蝌蚪 | 91视频污污网站 | 国产1卡2卡三卡四卡久久网站 | 91妻友:夫妻交友新体验 | av在线免费一区二区三区 | 日韩av无码一区二区三区不卡毛 | 国产AV无码专区亚洲AV久久 | 成人一区二 | 国产91成人超清在线 | 午夜福利国 | 成人亚洲视频 | 午夜精品一区二区三区电 | 粉泬毛多水多30岁女人都是水 | 午夜福利国产一区二区视频 | 国产波霸巨爆乳无码视频在线 | 国产av巨作饥渴性店长 | 日韩av片无码一区二 | 国产av仑乱内谢 | 91精品一区二区三区在线播放 | 波多野结衣潮喷系列 | 午夜a级理论片在线播放一级 | 东京热亚洲精品中文一区 | 一区二区三区欧美午夜视频 | 午夜片无码区在线观看手机 | 午夜干b| 福利片免费视频在线观看 | 97在线无码免费人妻短视频 | 午夜福利理论片在线观看播放 | 午夜视频久久 | 91麻豆视频免费在线观看 | 东京热天堂人人操人人爱人人看 | 97国产精品| 一区二区日韩国产精品 | 国产91 |