时间:2025-09-17 13:04:34 来源:网络整理编辑:熱點
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
Xiaomi accused of copying again, this time by Jawbone2025-09-17 12:40
傑拉德戰舊主隻求一勝 克洛普 :未來他會執教利物浦2025-09-17 12:31
伊布打入五大聯賽第300球 本世紀梅羅之後第三人2025-09-17 12:26
曼聯首發 :C羅拉什福德領鋒線 桑喬B費特萊斯出戰2025-09-17 12:25
Early Apple2025-09-17 12:14
贏球還要誅心 ?穆勒說巴薩跟不上潮流了 也許是真的2025-09-17 11:39
切爾西前瞻:鋒線火力全開 藍軍力求重返贏球軌道2025-09-17 11:35
巴黎前瞻:姆巴佩對陣老東家 梅西欲破解尷尬紀錄2025-09-17 11:02
Nate Parker is finally thinking about the woman who accused him of rape2025-09-17 10:58
女足年終排名:中國隊下滑兩位列第19 平曆史新低2025-09-17 10:54
Mom discovers security cameras hacked, kids' bedroom livestreamed2025-09-17 12:57
巴黎明夏欲簽C羅頂替姆巴佩 組梅羅內夢幻三叉戟2025-09-17 12:56
朗尼克上任後曼聯英超兩連勝 C羅造9球隊內最多2025-09-17 12:36
鄭智 :有些歸化球員和俱樂部中止合同了 我們要踢完比賽2025-09-17 12:00
Wikipedia co2025-09-17 11:51
國腳李磊將加盟瑞超聯賽草蜢隊 年底合同到期後開啟留洋之旅2025-09-17 11:42
尤文三連勝終結 !迪巴拉再傷退 囧叔替補席發飆2025-09-17 11:40
國腳李磊將加盟瑞超聯賽草蜢隊 年底合同到期後開啟留洋之旅2025-09-17 11:18
The U.S. will no longer have the final say on internet domain names2025-09-17 11:02
水慶霞升帳點兵中國女足邁入全新周期 利用亞洲杯磨煉陣容2025-09-17 10:21