时间:2025-07-06 01:35:07 来源:网络整理编辑:時尚
These dust clouds — intense plumes of citron, blush, and magenta — are not signs of bloo
These dust clouds — intense plumes of citron, blush, and magenta — are not signs of blooming as they tend to be on Earth but the final sputters of a dying star in this new deep space image captured by the James Webb Space Telescope.
At the center of this blossom-like structure is a blue-white star, born 30 times more massive than the sun. Because it is old and close to collapsing into a black hole, it burns hotter and generates powerful gas winds. It's called Wolf-Rayet 124, a star in the midst of a rare and brief phase before going supernova.
Scientists released the new snapshot during the South by Southwest Conference & Festivals on Tuesday in Austin, Texas. The event included a NASA and European Space Agency expert panel to discuss the telescope’s latest scientific discoveries.
"This is Carl Sagan's stardust concept, the fact that iron in your blood and the calcium in your bones were literally forged inside of a star that exploded billions of years ago," said NASA astrophysicist Amber Straughn at the conference. "That's what we're seeing in this new image — that dust is spreading out into the cosmos and will eventually create planets, and this is how we got here."
SEE ALSO:Webb telescope just saw more galaxies in a snapshot than Hubble's deepest lookTweet may have been deleted
Webb, the preeminent observatory in the sky, was built to see an early period of the universe, using a large primary mirror that can detect invisible light at infrared wavelengths. 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.
Want more scienceand tech news delivered straight to your inbox? Sign up for Mashable's Top Stories newslettertoday.
The star showcased in the new image is located some 15,000 light-years away in the constellation Sagittarius. It is wrapped in a cocoon of gas and dust — shedded layers of the star commingled with complicated elements found deep inside a star like carbon. So far, it has sloughed off 10 sun's-worth of material, according to researchers.
"Iron in your blood and the calcium in your bones were literally forged inside of a star that exploded billions of years ago."
Tweet may have been deleted
A previous Webb study makes a strong case that Wolf-Rayet stars produce carbon-rich dust molecules, the same chemical that largely makes up humans and other life on Earth. Astronomers study these rare Wolf-Rayet stars for insight into how cosmic dust spreads through the universe, seeding new galaxies and stars, said Macarena Garcia Marin, an ESA scientist on the panel.
With Webb, scientists will try to better understand dust-making factories like this special star.
"We know that when the stars are this big, they live fast. They go through different stages in very quick time," said Marin. "And only some of them end up being in this Wolf-Rayet (phase) to later on become a supernova."
TopicsNASA
U.S. pole vaulter skids to a halt for national anthem2025-07-06 01:24
吳金貴 :有的球沒辦法評論 這是一個轉折點2025-07-06 01:23
中超積分榜 :泰山3分優勢領跑 三鎮輸球爭冠形勢不妙2025-07-06 01:07
謝暉 :武磊回歸+新援讓海港隊產生了質的變化2025-07-06 00:12
Carlos Beltran made a very interesting hair choice2025-07-06 00:01
曝許家印6.5億山頂豪宅被接管 還有兩幢已被抵押2025-07-05 23:59
中超最佳陣容 :領頭羊三叉戟領銜 楊立瑜梅開二度救主2025-07-05 23:25
國安主帥 :不見得會特別針對馬爾康 麵對榜首球隊很有動力2025-07-05 23:22
Felix the cat just raised £5000 for charity because she's the hero we all need2025-07-05 23:19
謝暉 :武磊回歸+新援讓海港隊產生了質的變化2025-07-05 23:09
There's a big piece of fake chicken stuck to this phone case2025-07-06 01:32
小組第二賽高?利物浦暗爽躲開大巴黎 盼迎回馬內2025-07-06 00:53
河北球員聯名回應俱樂部:不要避重就輕 恐嚇敷衍球員2025-07-06 00:35
夢碎!前恒大韓國中衛無緣世界杯 最後熱身賽意外受傷2025-07-06 00:19
These glasses hide a fitness tracker on your face2025-07-06 00:18
鄧涵文 :國安很強全隊全力以赴 不會看山東比賽結果2025-07-06 00:08
中超最佳陣容 :領頭羊三叉戟領銜 楊立瑜梅開二度救主2025-07-05 23:36
足協官方:因未能解決欠薪 中超中甲3隊各扣除3分積分2025-07-05 23:09
Ivanka Trump's unpaid interns share cringeworthy financial advice2025-07-05 23:06
申花官方恭喜巴索戈圓夢世界杯 12日啟程奔赴多哈報到2025-07-05 22:50