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

【black women sex videos xnnx】Scientists just excavated an unprecedented specimen from Antarctica

Source:Global Hot Topic Analysis Editor:fashion Time:2025-07-02 07:14:08

At an extremely remote Antarctic outpost,black women sex videos xnnx 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.

0.1654s , 14221.875 kb

Copyright © 2025 Powered by 【black women sex videos xnnx】Scientists just excavated an unprecedented specimen from Antarctica,Global Hot Topic Analysis  

Sitemap

Top 主站蜘蛛池模板: 波多野结衣高清中文在线 | 99久久免费国产精精品 | 成人午夜免费 | 午夜自产一区二区 | 91影片| 91精品最新国内在线 | 91大神大战高跟丝袜 | www.色中色 | 午夜副利电影手机高清在线直播app下载 | 99SE久久爱五月天婷婷 | 日韩av无码久久一区二区 | 粗大的内捧猛烈进出 | 91av在线观看国产日本视频 | 91男女免费福利 | 97碰在线看片免费视频 | 午夜av不卡免费在线播放 | 高潮视频免费 | 久久精品免费观 | 97精品尹人久久大香线蕉 | 99国产精品农村一级毛片 | 91精产品自偷自偷综合 | 午夜综合久久亚洲精品无码av网 | 午夜亚洲精品亚洲春色av | 91国在线产 | 丰满国产老妇吞精在线 | 91精品在线播放视频大全在线观看 | 国产av天堂一区二区三区 | 国产不卡福利片在线观看浪潮 | 丁香婷婷在线视频 | 99久久国产精品免费热日韩 | 97精品国产自产在线观看永久 | 69老司机在线 | 99精品在线视频 | 91麻豆成人国 | 东京热无码人妻系列综合 | 国产aⅴ视频一区二区三区 国产aⅴ熟女 | av无码xxxxx| 91麻豆最新在线人成免费观看 | av潮喷大喷水系列无码番号 | 99久久精品国产波多野结衣 | 91精品国产经典在线观看 |