时间:2025-03-07 11:25:35 来源:网络整理编辑:娛樂
Stare into the core of the Phantom Galaxy. New images from humanity's most powerful space telescopes
Stare into the core of the Phantom Galaxy.
New images from humanity's most powerful space telescopes — the legendary Hubble telescope and its successor the James Webb Space Telescope — reveal unprecedented detail in this magnificent distant spiral galaxy. It's 32 million light-years away.
The over 30-year-old Hubble telescope views light we can see (visible light), while the Webb telescope views a type of light with longer wavelengths (called "infrared light") that isn't visible to us. Together, these instruments gather bounties of data that reveal new insights about what lies in the distant cosmos.
The middle image below shows the combined views of the Hubble and Webb telescopes. What you can see:
The areas of bright pink in the reddish spirals are active star-forming regions
The bright blue dots are other stars
The core of the galaxy glows cyan and green. These are older stars clustered around the galactic center.
In the Webb image by itself (the top image of this story or the right-side image in the comparison above), it's easy to see the many stars (shown in blue) amassed in the galaxy's core. A lack of gas at the heart of the Phantom Galaxy makes this view exceptionally clear.
Hubble continues to capture dazzling views of distant stars and galaxies. Meanwhile, Webb, stationed 1 million miles away from Earth, is expected to reveal new insights about the universe. Here's how Webb will achieve unparalleled things:
Giant mirror: Webb's mirror, which captures light, is over 21 feet across. That's over two and a half times larger than the Hubble Space Telescope'smirror. Capturing more light allows Webb to see more distant, ancient objects. The telescope will peer at stars and galaxies that formed over 13 billion years ago, just a few hundred million years after the Big Bang.
"We're going to see the very first stars and galaxies that ever formed," Jean Creighton, an astronomer and the director of the Manfred Olson Planetarium at the University of Wisconsin–Milwaukee, told Mashable last year.
Infrared view: Webb is primarily an infrared telescope, meaning it views light in the infrared spectrum. This allows us to see far more of the universe. Infrared has longer wavelengthsthan visible light, so the light waves more efficiently slip through cosmic clouds; the light doesn't as often collide with and get scattered by these densely-packed particles. Ultimately, Webb's infrared eyesight can penetrate places Hubble can't.
"It lifts the veil," said Creighton.
Peering into distant exoplanets: The Webb telescope carries specialized equipment, called spectrometers, that will revolutionize our understanding of these far-off worlds. The instruments can decipher what molecules (such as water, carbon dioxide, and methane) exist in the atmospheres of distant exoplanets — be they gas giants or smaller rocky worlds. Webb will look at exoplanets in the Milky Way galaxy. Who knows what we'll find?
"We might learn things we never thought about," Mercedes López-Morales, an exoplanet researcher and astrophysicist at the Center for Astrophysics-Harvard & Smithsonian, told Mashable in 2021.
TopicsNASA
New Zealand designer's photo series celebrates the elegance of aging2025-03-07 11:13
【波盈足球】 C羅去沙烏地好處多?英媒 :可享受國王般的生活 ( 美聯社,阿拉伯 )2025-03-07 10:39
門將選位的方法 :三步和五步規則(足球守門員規則新手須知)2025-03-07 10:31
【波盈足球】 足球皇馬不要姆巴佩了 傳目標鎖定英格蘭19歲超新星 ( 皇馬,美聯社 )2025-03-07 10:14
Carlos Beltran made a very interesting hair choice2025-03-07 09:57
阿根廷2比0波蘭 !梅西晉級啦 ! !(阿根廷02025-03-07 09:09
【波盈足球】 世足興奮換到梅西千場戰袍交給家人 澳洲球員已不知球衣下落 ( 球衣,梅西 )2025-03-07 09:07
原創 亞足聯哭了 !世界杯實力榜,卡塔爾排名亞洲第1,6隊出線皆被看衰(卡塔爾世界杯12強賽比賽時間)2025-03-07 08:49
Carlos Beltran made a very interesting hair choice2025-03-07 08:47
【波盈足球】 聖誕氣氛滿滿 安聯小小世界盃決戰台北田徑場 ( 足球,台北 )2025-03-07 08:39
Tourist survives for month in frozen New Zealand wilderness after partner dies2025-03-07 10:54
【天下體育NBA】 塞翁失馬!湖人因為貝弗利停賽本賽季能節省76萬美元開支 ( 湖人,節省 )2025-03-07 10:42
“亞洲之光”日本重現奇跡,2:1擊敗西班牙 ,德國無緣16強(14年的德國有多強大)2025-03-07 10:24
葡萄牙辟謠C羅威脅離隊,詹俊預測梅西進球(c羅離隊皇馬球員言論)2025-03-07 10:01
Hiddleswift finally followed each other on Instagram after 3 excruciating days2025-03-07 09:50
你確定知道這7條足球規則嗎?(足球守門員的規則和攻略)2025-03-07 09:45
【波盈足球】 世足想拿第2座冠軍?阿根廷名將爆 :梅西有意再戰2026年 ( 梅西,阿根廷 )2025-03-07 09:32
你記得的那些世界杯歌曲 ,其實都不是世界杯主題曲(卡塔爾世界杯歌曲有幾首歌名)2025-03-07 09:29
Pokémon Go is so big that it has its own VR porn parody now2025-03-07 09:14
日本主帥森保一:贏下西班牙 ,證明我們可以在世界舞台競爭(亞洲12強賽日本對阿曼)2025-03-07 09:02