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

【ebony stepmom sex video】Astronomers may have solved one of Webb space telescope's first puzzles

Source:Global Hot Topic Analysis Editor:fashion Time:2025-07-02 21:09:00

Almost immediately after scientists pointed the James Webb Space Telescope at the earliest galaxies in the universe,ebony stepmom sex video they were seeing things that didn't jibe with the rules of the cosmos.

These galaxies, viewed as they were only 500 to 700 million years after the Big Bang, seemed too massive and mature for their young age. It was like finding parents and children alongside their grandparents, who were themselves still children, two physicists said in a piece written for The New York Times.

“It’s bananas,” said Erica Nelson, an astrophysicist at the University of Colorado in Boulder, earlier this year in a statement. “You just don’t expect the early universe to be able to organize itself that quickly. These galaxies should not have had time to form.”


You May Also Like

But new space research using advanced computer simulations suggests that the reason they appear mature through the infrared eyes of Webb, run by NASA and the European and Canadian space agencies, is not because they are uncharacteristically massive. Though a galaxy's brightness usually corresponds to its mass, small, less-developed galaxies could burn just as bright from irregular bursts of star formation, scientists say.

SEE ALSO: Webb telescope snaps some of its largest images, and they're majestic

A group of astrophysicists led by Northwestern University was able to demonstrate this without contradicting existing and widely accepted cosmology theories. The computer experiment was also able to reproduce the same number of bright galaxies at the cosmic dawn that astronomers observed with Webb. The research was published this week in Astrophysical Journal Letters.

"The key is to reproduce a sufficient amount of light in a system within a short amount of time,” said Guochao Sun, lead author on the study, in a statement. "A system doesn’t need to be that massive. If star formation happens in bursts, it will emit flashes of light. That is why we see several very bright galaxies."

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!
Webb detecting earliest galaxiesThe James Webb Space Telescope spotted ancient galaxies initially considered extremely massive for their age because of their brightness. Credit: NASA / ESA / CSA / I. Labbe / G. Brammer

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

One of Webb's primary missions is to watch the universe "turn the lights on" for the first time by observing the ancient galaxies from the cosmic dawn — a period between 100 million years to 1 billion years after the Big Bang. In astronomy, looking farther translates into observing the past because light and other forms of radiation take longer to reach us.

Space is filled with gas and dust, which obscures the view to extremely distant and inherently dim light sources, but infrared light waves can penetrate the clouds. A NASA scientist once compared the infrared telescope's sensitivity to being able to detect the heat of a bumblebee on the moon.

The Northwestern simulations revealed that the early galaxies could have undergone something the intellectuals refer to as — we kid you not — "bursty star formation." Rather than making stars at a steady clip like the Milky Way does, for instance, these galaxies churn out stars inconsistently, with a proliferation all at once, followed by stagnant periods sometimes stretching millions of years before another so-called burst.


Related Stories
  • Webb telescope snaps some of its largest images, and they're majestic
  • Webb telescope just saw more galaxies in a snapshot than Hubble's deepest look
  • Webb telescope just found something unprecedented in the Orion Nebula
  • Webb telescope spills secrets of a famous supernova
  • Webb peers at most distant star yet and finds a surprise

Bursty star formation is common in low-mass galaxies, said Claude-André Faucher-Giguère, a professor of physics and astronomy at Northwestern, though it's unclear why.

Webb taking its first deep field imageNASA released the first deep field image by the James Webb Space Telescope on July 11, 2022, at the White House. Credit: NASA / ESA / CSA

"What we think happens is that a burst of stars form, then a few million years later, those stars explode as supernovae," he said in a statement. "The gas gets kicked out and then falls back in to form new stars, driving the cycle of star formation."

That might not happen in more massive galaxies because they have stronger gravity.

In that case, "When supernovae explode, they are not strong enough to eject gas from the system," Faucher-Giguère continued. "The gravity holds the galaxy together and brings it into a steady state."

0.2046s , 14208.6796875 kb

Copyright © 2025 Powered by 【ebony stepmom sex video】Astronomers may have solved one of Webb space telescope's first puzzles,Global Hot Topic Analysis  

Sitemap

Top 主站蜘蛛池模板: 91无人区卡一卡二卡三乱码下载 | 高潮喷水无码AV亚洲 | 99久视频 | 二区视频在线 | 动漫精品视频一区二区三区 | 久久久久久久九九九九 | 91污在线观看一区二区三区 | 波多野结衣xxxx性精品 | 放放电影院| av岛国天堂网 | 白丝被绑双腿憋尿sm调教 | 91香蕉国 | 国产97视频在线观看 | 日韩AV片无码一区二区三区不卡 | 一区二区三区福利 | 91制片厂果冻星空传媒喜剧 | 97人人超碰国产精品最新 | 波多野办公室激情A片 | 18女下面流水不遮图免费图 | 成年在线观看网站免费 | 午夜热门精品一区 | 91尤物视频在| 午夜性做爰电影 | 丁香八月婷婷 | 班长你轻点灬爽灬宝贝一 | 福利网站导航 | 99国产精品视频一区二区三区 | 高清国产精品人妻一区二区 | WWW.红杏视频 | 丰满熟女人妻 | 99视频只有精品 | a欧美日韩高清 | 91精品导航在线网址免费 | 91福利影院| 国产v亚洲v天堂宗合 | 高清无码视频直接看 | 福利区观看在线视频 | 动漫3d精品一区二区三区乱码 | www.伊| 91剧情国产极品高跟丝袜 | 91午夜精品亚洲一区二区三 |