Set as Homepage - Add to Favorites

日韩欧美成人一区二区三区免费-日韩欧美成人免费中文字幕-日韩欧美成人免费观看-日韩欧美成人免-日韩欧美不卡一区-日韩欧美爱情中文字幕在线

【sexy body girls sex video】Scientists detect something really unexpected beneath Saturn's 'Death Star' moon

Mimas,sexy body girls sex video Saturn's cryptic-looking moon, is awfully deceptive.

The small moon is dominated by an 80-mile-wide crater, giving it the appearance of the grim Star WarsDeath Star — a space station equipped with a planet-destroying weapon. But otherwise, Mimas appears as a frozen chunk of ice.

Other moons, like Saturn's Enceladus and Jupiter's Europa, have cracked surfaces or telltale plumes shooting from the ground, which are compelling evidence for sub-surface oceans. Mimas doesn't outwardly offer hints of an ocean.

"When you look at Enceladus and Europa, there's clearly an engine in these moons that is running," Alyssa Rhoden, a planetary scientist who researches ocean worlds, told Mashable. "When you look at Mimas it's the opposite — it can't possibly be an ocean world."

Or so Rhoden thought. Looks are deceiving.

In new research published in the planetary science journal Icarus, Rhoden and her coauthor describe how they unexpectedly found evidence for an ocean beneath Mimas' icy shell. The moon may not be a frozen chunk of ice, after all.

Saturn's moon MimasThe giant crater on Saturn's moon Mimas. It's called the Herschel Crater. Credit: NASA / JPL / Space Science Institute plumes of water ice on Saturn's moon EnceladusPlumes of water ice on Saturn's moon Enceladus, captured by the Cassini spacecraft. Credit: NASA / JPL / Space Science Institute

Mimas does have an attribute that could allow it to harbor an ocean. Its orbit around Saturn is highly eccentric, meaning it gets tugged and stretched as it swings close to the powerful gravitational force of the planet and then orbits farther away. (Each orbit takes just 22 hours and 36 minutes!) This process, called "tidal heating," creates vast amounts of heat in ocean worlds like Europa.

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!

With this reality in mind, Rhoden, a principal scientist at the Southwest Research Institute, a science organization, followed up on an earlier observation of a tiny wobble in Mimas' orbit around Saturn. An icy sea sloshing inside Mimas could potentially trigger this wobble. Might tidal heating have melted enough ice inside Mimas to create a sea? If so, there couldn't be too much heat (that would melt through the icy shell) nor too little heat (then the ocean would freeze).

The researchers calculated that if there was indeed an ocean inside Mimas large enough to trigger its wobble, the water would exist beneath an icy shell some 14 to 20 miles thick. So they ran computer simulations of how the heating (from tidal heating) would impact the ice on Mimas. Unexpectedly, it showed an ocean under 14 to 20 miles of solid ice.

"We came up with exactly the right number," Rhoden said.

This isn't, Rhoden emphasizes, nearly certain proof that Mimas harbors an ocean. But there's now compelling evidence that an ocean could exist there, with the information available.

"There's a lot of different ways life might be able to emerge."

Oceans, as we know on Earth, are immensely diverse places, brimming with life. "Water is at the top of the list of ingredients that make life possible," writes NASA. And on ocean worlds like Europa, tidal heating may ultimately allow life to thrive, though there's still zero evidence of life outside Earth. "Tidal heating could be powering a system that cycles water and nutrients between the moon's rocky interior, ice shell, and ocean, creating a watery environment rich with chemistry conducive to life," NASA added.

Sometimes, the search for life gets narrowed down to "habitable zones" in solar systems, which are the relatively narrow regions where liquid water could exist on a planet's surface. Earth, for example, exists in our solar system's habitable zone.

SEE ALSO: Many of the Webb telescope’s greatest discoveries won't come from any amazing pictures

Europa and Enceladus, located in the frosty regions of our solar system, are well outside the habitable zone. But these worlds harbor oceans. And potentially, life may have emerged there.

"Habitability is not one swath of a solar system," said Rhoden. "There's a lot of different ways life might be able to emerge."


Featured Video For You
How the powerful Webb telescope will peer 13 billion years back in time

0.1226s , 10265.5703125 kb

Copyright © 2025 Powered by 【sexy body girls sex video】Scientists detect something really unexpected beneath Saturn's 'Death Star' moon,Public Opinion Flash  

Sitemap

Top 主站蜘蛛池模板: 久久免费视屏 | 久久久久亚洲精品无码网站 | 国产超薄肉丝袜在线播放 | 丁香五月欧美成人 | 国产综合另类视频 | 日本a级片免费 | 国产精品毛片久久 | 亚洲AV永久无码精品三区在线4 | 91九色视频在线观看 | 国精品人妻无码一区二区三区性色 | 精品人伦一区二区三区潘金莲 | 另类91videos日本无在线观看视频 | 国产成人免费a在线播放 | 久久三级国产 | 亚洲av无码高清不卡在线观看 | 四虎国产精品成人免费久久 | ts在线视频| 毛片在线观看 | 欧美日韩国产高清 | 无码激情全黄做爰片 | 日日摸天天摸人人看 | 天美文化传媒mv免费入口高清 | 精品国产男人的天堂在线毛黄 | AV久久无码AV喷水高潮 | av一区二区三区不卡在 | 亚洲国产精品久久精品成人网站 | 国产精品一区二区久久国产 | 亚洲欧美一区二区成人片 | 成人国产| AV日日碰狠狠躁久久躁 | 波多野结衣一区二区二区 | 日本精品一区二区三区高清 | 国产黄在线观看免费观看不卡 | 91精品一区二区 | 97国产精品欧美一区二区三区 | 国产成人精品视频专区 | av无码精品放毛片 | 91日本在线视频 | 老师我好爽再深一点办公室 | 久久精品人妻一区二区三区蜜柚 | 91久久精品一区二区三区 |