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

【nepal sex videos】Astronomers lost an entire galaxy. Then Webb found it.

A galaxy is nepal sex videosa collection of billions of stars, their clinging solar systems, gas, and dust, all bound together by the invisible force of gravity.

So it's hard to imagine astronomers could detect one of these colossal realms with a ground-based telescope, only to peer through a powerful telescope in space and see no trace of its existence — just a deep and endless void of darkness.

Scientists first discovered Aztecc71 with a camera on the James Clerk Maxwell Telescope in Hawaii. But when they searched for the galaxy with NASA's Hubble Space Telescope, it had completely vanished.

It took the James Webb Space Telescope, the leading infrared space observatory, to win at hide-and-seek. There it was: a faint but distinct galaxy, popping out hundreds of new stars every year.

For scientist Jed McKinney, a postdoctoral researcher at the University of Texas at Austin, its rediscovery is a game changer, hinting at the possibility that Webb will find many others of its kind, existing long ago in cocoons of dust.

"We can study for the first time the optical and infrared properties of this heavily dust-obscured, hidden population of galaxies,” McKinney said in a statement. "Not only can (Webb) stare back into the farthest reaches of the universe, but it can also pierce the thickest of dusty veils."

SEE ALSO: Webb telescope stares into a galaxy that's long intrigued scientists Webb finding a dusty star-forming galaxy in the early universeIn this color composite image, the James Webb Space Telescope finds a dusty star-forming galaxy in the early universe known as Aztecc71. Credit: J. McKinney / M. Franco / C. Casey / The University of Texas at Austin

Aztecc71 is a star-forming galaxy in the emerging ancient universe. Its buzz of activity is hard to observe because it's concealed in a cloak of dust. Researchers estimate the Webb images capture the galaxy at about 900 million years after the Big Bang. Given that most scientists believe the universe is 13.8 billion years old today, that period can still be considered the universe's infancy.

Galaxies like Aztecc71 were once assumed to be rare in the early universe. But this discovery suggests they might be three to 10 times as common as expected, according to a new paper on the finding, published in The Astrophysical Journal.

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 earmarked over a dozen more candidates in the first half of COSMOS-Web data, the largest initial Webb research initiative to map up to 1 million galaxies in a particular area of the sky to study early structures of the universe.

Admittedly, the Webb image of the galaxy looks like a smudgy little blob, the researchers say.

"The fact that even something that extreme is barely visible in the most sensitive imaging from our newest telescope is so exciting to me," said McKinney, who co-led the investigation. "It’s potentially telling us there’s a whole population of galaxies that have been hiding from us."

The key to Webb's success in finding Aztecc71 was its infrared vision, a type of light that is invisible to human eyes. Webb, a collaboration of NASA, the European Space Agency, and the Canadian Space Agency, is observing some of the oldest, faintest light in the universe. The powerful telescope, orbiting the sun about 1 million miles away, will study a period less than 300 million years after the Big Bang, when many of the first stars and galaxies were born.

Comparing Hubble and Webb's telescope mirror sizesA comparison of Hubble and Webb's telescope mirror sizes. Credit: NASA
Featured Video For You
10 mind-blowing discoveries from the James Webb Telescope

Want more scienceand tech news delivered straight to your inbox? Sign up for Mashable's Light Speed newslettertoday. 


Related Stories
  • Webb telescope reveals this vomiting baby star has an accomplice
  • Webb telescope snaps some of its largest images, and they're majestic
  • Webb telescope just found something unprecedented in the Orion Nebula
  • Webb captures the arresting beauty of a perfect spiral galaxy
  • Webb telescope just saw more galaxies in a snapshot than Hubble's deepest look

In astronomy, looking farther translates into observing the past, because light and other forms of radiation take longer to reach us. In Hubble's deepest image, the oldest visible galaxies date back to the first 800 million years after the Big Bang.

But Webb was built to see an even earlier period, using a much larger primary mirror than Hubble — 21 feet in diameter versus just under 8 feet — and detecting invisible light at infrared wavelengths.

In short, a lot of dust and gas in space obscures the view to extremely distant and inherently dim light sources, but infrared waves can penetrate through the clouds. A NASA scientist once compared the infrared telescope's sensitivity to being able to detect the heat of a single bumblebee if it were on the moon.

Webb investigation mapping the cosmosThe COSMOS-Web survey will map 0.6 square degrees of the sky — about the area of three full moons. Credit: Jeyhan Kartaltepe (RIT) / Caitlin Casey (UT Austin) / Anton Koekemoer (STScI) / Alyssa Pagan (STScI)

Hubble couldn't detect Aztecc71 because much of its starlight is absorbed in the dusty cocoon, then re-emitted at longer wavelengths. Before Webb, astronomers coined a term for these: Hubble dark galaxies.

McKinney and the research team believe the early universe could be teeming with other such dusty galaxies, simply playing a game of peekaboo with our telescopes. The prior scientific thinking has been that this early era was more spick and span, with less surrounding dust because there hadn't been generations upon generations of supernovas blowing up and dispersing stellar particles through space.

"That means our understanding of the history of galaxy evolution is biased," he said. "We (were) only seeing the unobscured, less dusty galaxies."

Topics NASA

0.1725s , 14073.5703125 kb

Copyright © 2025 Powered by 【nepal sex videos】Astronomers lost an entire galaxy. Then Webb found it.,Public Opinion Flash  

Sitemap

Top 主站蜘蛛池模板: 久久做品人人做人人综合 | 午夜A片无码福利1000集 | 免费看美女被靠的网站 | 丁香久久五月天激情 | 日本在线看片免费人成视频100 | 白丝护士高潮喷水免费网站 | 国产超短裙丝袜在线播放 | 四虎com最新地址 | 久久久久久九九99精品午夜福利91 | 在线日韩日本国产亚洲 | 制服丝袜快播 | 91视频爱爱| 高清无码观看日产韩国精品黄色 | 国产成人三级在线视频网站观看 | 丰满人妻一区二区三区视频按摩 | 久久精品aⅴ无码中文字字幕 | 日韩精品人妻一区二区中文 | 日本小动作影片推荐 | 亚洲日韩欧美另类蜜桃 | 国产成人爱片免费观看视频 | a级毛片免费完 | 无码人妻精品一区二区抖音 | 婷婷激情综合色五月久久竹菊影视 | 野花社区wwW高清视频 | 亚洲国产专区一区二区麻豆 | 久久九九久精品国产日韩经典 | 无套中出丰满人妻无码 | 欧美成人免费观看久久 | 国产一区二区三区99视频 | 人妻少妇被猛烈进入中文字幕 | 波多野结衣久久精品 | 麻豆视传媒官网进入 | 成人爽a毛片免费网站 | a级免费的大片视频网 | 亚洲香蕉网久久综合影院3p | 不卡无码人妻一区二区三区 | 国产日本精品视频在线观看 | 国产精品乱码久久久久久软件 | 欧美网站精品久 | 91中文字幕亚洲精品乱码在线 | 狠狠色狠狠色综合久久伊人 |