国产三级大片在线观看-国产三级电影-国产三级电影经典在线看-国产三级电影久久久-国产三级电影免费-国产三级电影免费观看

Set as Homepage - Add to Favorites

【video tudung lucah】Webb telescope finds first clear evidence of a 'steam world'

Source:Feature Flash Editor:fashion Time:2025-07-03 03:43:50

Among the 5,video tudung lucah700 confirmed exoplanetsastronomers have discovered outside the solar system, there are those considered ice worldsand water worlds, but what about a steam world? 

Well, they've done it. Scientists using the James Webb Space Telescope, a partnership of NASAand its European and Canadian counterparts, have indeed detected a sauna-like planet about 100 light-years away from Earth in the constellation Pisces. Some have called it the first direct evidence of a planet blanketed in wet heat. 

This humid alien planet, GJ 9827 d, is about double the size of Earth and has an atmosphere almost entirely composed of water vapor, according to a new study. Before now, such worlds were only theorized to exist in space


You May Also Like

"It was a very surreal moment," said Eshan Raul, who contributed to the research while an undergraduate student at the University of Michigan, in a statement. "We were searching specifically for water worlds because it was hypothesized that they could exist. If these are real, it really makes you wonder what else could be out there."

SEE ALSO: Scientists haven't found a rocky exoplanet with air. But now they have a plan. Comparing icy moonsEuropa, left, and Enceladus are two moons in the frigid outer solar system suspected to have oceans under icy shells. Credit: NASA

Such a steam world is thought to have thick water-rich air, with a surface devoid of ice or flowing water. It's what scientists imagine icy moons of Jupiter, like Europaand Ganymede, would be like if they orbited near the suninstead of more distant reaches of the solar system. 

GJ 9827 d, a rocky super-Earth, is so close to its host star that it has an estimated surface temperature of 660 degrees Fahrenheit. For comparison, the average surface temperature of Earth is 59 degrees Fahrenheit. Because of the exoplanet's extreme heat, its atmosphere is likely a mix of gas, without clouds or distinct layers.

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!

Scientists have found signs of hydrogen-rich atmospheres surrounding many worlds, but all of them have been around gas giant planets, like Jupiter. The hunt for a more terrestrial world swaddled in a protective atmosphere of heavier elements had eluded astronomers, though Webb has helped scientists find reasonable bets, such as 55 Cancri e, GJ 486 b, and LHS 1140 b

This is the first confirmed case of an exoplanet atmosphere where hydrogen is not the dominant component, said Caroline Piaulet-Ghorayeb, a doctoral student at the University of Montréal. The new paper, led by Piaulet-Ghorayeb, was published in Astrophysical Journal Letterslast week. 

Since Webb opened for business, researchers have frequently used a technique called transmission spectroscopyto study exoplanets. When these worlds cross in front of their host star, starlight gets filtered through their atmospheres. Molecules within the atmosphere absorb certain light wavelengths, or colors, so by splitting the light into its basic parts — like a rainbow — astronomers can detect what light segments are missing to discern the molecular makeup of an atmosphere.


Related Stories
  • Scientists haven't found a rocky exoplanet with air. But now they have a plan.
  • Webb telescope is about to home in on these 2 exoplanets. Here's why.
  • The best telescopes for gazing at stars and solar eclipses in 2024
  • This nearby dwarf planet's ice may be left over from a dirty ocean
  • The strange new worlds scientists discovered in 2024

Researchers used the new Webb data, coupled with Hubble Space Telescope observations conducted earlier this year, to confirm the steam composition. A common problem with such studies is the potential for variability in signals based on stellar activity— like the spots that can form on the sun. After careful analysis, teams were able to rule out the possibility of botched data due to stellar contamination. 

the James Webb Space TelescopeResearchers will use the James Webb Space Telescope to continue studying GJ 9827 d, the first confirmed "steam world." Credit: NASA GSFC / CIL / Adriana Manrique Gutierrez illustration

While this planet would not be habitable for most life forms people are familiar with on Earth, the success of finding a terrestrial world with an atmosphere teeming with water means scientists are getting ever-closer to finding temperate hospitable worlds. 

Webb scientists are about to begin a massive study of rocky worldsoutside the solar system, specifically in search of planets orbiting close to red dwarf stars — the most abundant type of star in the Milky Way — that could have air. The program, first reported by Mashable, has already picked the first two of about a dozen target planetsto study.

"Now we’re finally pushing down into what these mysterious worlds with sizes between Earth and Neptune, for which we don’t have an example in our own solar system, are actually made of," said coauthor Ryan MacDonald in a statement. "This is a crucial proving step towards detecting atmospheres on habitable exoplanets in the years to come."

0.2474s , 9869.5546875 kb

Copyright © 2025 Powered by 【video tudung lucah】Webb telescope finds first clear evidence of a 'steam world',Feature Flash  

Sitemap

Top 主站蜘蛛池模板: 波多野结衣中文丝袜字幕 | 99久久免费精品 | 成a人片免费在线观看 | 成人欧美s视频在线观看 | 波多野吉衣一区二区三区四区 | 日韩亚洲欧美中文字幕在线观看 | 无码欧美又大又色又爽AAAA片 | 欧美寡妇xxxx黑人猛交 | 国产成人免费高潮激情视频 | 国产人妻丰满熟妇嗷嗷叫 | 日韩国际精品一区二区 | 国产做A爰片久久毛片A片软件 | 日韩精品人妻AV一区二区三区 | 欧美一级免费在线观看 | 女人下边被添全过程A片图片 | 国产三级av在线 | 国产精品艺校美女校花在线 | 国产精品成熟老妇女 | 日本韩国台湾香港三级 | 日韩欧美亚洲国产精品字幕久久 | 久久无码人妻中文字幕免费 | 99国产精品久久久久久久久久久 | 色婷婷丁香 | 国产午夜精品久久久久小说 | 日日夜夜精品视频 | 国产成人性毛片 | 二区三区欧美精品在线观看 | 久久精品中文字幕首页 | 欧洲精品亚洲精品日韩专区 | 久久国产精品免费一区 | 亚洲人av片在线观看 | 久久久久青草线焦综合 | 在线观看免费黄色网址 | 欧美黑人添添高潮A片视频 欧美黑人性暴力猛交免费看 | 国产中文字幕视频在线观看 | 精品视频一区二区三区在线播放 | 少妇高潮潮喷到猛进猛出小说 | 成人无码一区二区三区 | 四虎成人免费观看在线网址 | 国产又粗又黄又爽的A片动漫软件 | 欧美亚洲日韩午夜激情影院 |