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

【legal age gay boys sex videos】Scientists just excavated an unprecedented specimen from Antarctica

Source:Global Hot Topic Analysis Editor:knowledge Time:2025-07-02 23:03:45

At an extremely remote Antarctic outpost,legal age gay boys sex 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.

0.1434s , 14308.90625 kb

Copyright © 2025 Powered by 【legal age gay boys sex videos】Scientists just excavated an unprecedented specimen from Antarctica,Global Hot Topic Analysis  

Sitemap

Top 主站蜘蛛池模板: 福利乱码卡一卡二卡新区 | 97色伦久久视频在观看 | 一区二区日本精品理论片 | 福利一区二区精品免费 | 国产av亚洲精品久久久久久 | 东京热人妻一区二区三区 | 福利姬视频在线免费观看 | 午夜看一级特黄a大片 | 波多野结衣高清在线 | 99re最新视频| 91成人精品国产一区 | 97在线观看免费版高清 | 91精品无码人妻在线 | 国产白嫩美女在线观看 | 国产91精品一区二区免费在线播放 | 国产AV国片偷人妻麻豆潘甜 | 一区二区在线中文字幕高清 | 国产91小视频在线观看 | 99热在线观看精品 | 国产91乱剧情全集 | 白丝尤物小仙女丝祙自 | 二区三区在线观看视频 | 爆乳熟妇一区二区三区霸乳 | 韩国三级电影在线观看 | 午夜福利片爽爽爽免费看 | 福利小电影在线看 | 91精品无码国产在线观看一区欧美日一 | 99久久精品美女高潮噴水 | 91视频爱爱 | 日韩av无码一区二区三区不卡毛 | 午夜伦理yy44008影院 | av画质变高清 | 97精品伊人久久大香线蕉 | 91亚洲精品自产拍在线观看 | 成人亚洲性情网站www在线观看 | 91啪在线观看国产在线 | 成年人视频免费网站 | av免费黄色网址 | ts人妖系列在线专区 | 国产av无码专区亚洲av毛片费 | fc2个人撮影在线播放 |