时间:2025-05-09 15:32:55 来源:网络整理编辑:焦點
The Hubble Space Telescope captured a brilliant image of spiral galaxy NGC 3254, which has a particu
The Hubble Space Telescope captured a brilliant image of spiral galaxy NGC 3254, which has a particularly luminescent and active core emitting as much energy as the rest of the galaxy combined.
NGC 3254 is classified as a Seyfert galaxy. Seyfert galaxies are defined by their extremely active centers. Why are they so active? They each have a supermassive black hole in them.
The intense gravitational pull of supermassive black holes whip gases, dusts, stars, planetary bodies, and other material into a frenzy of high-speed collisions as they're yanked inward. As all that space stuff rips apart, smashes together, and spaghettifies, temperatures soar.
While it's true that the gravitational pull of black holes is so strong that even light can't escape, black holes could be described as messy eaters. As they eat (or "accrete") material, they also expend energy, which blasts outward as heat and light.
Hubble's image of the NGC 3254 galaxy is a composite of both visible and infrared light spectrums, which allows us to get a clear, detailed visual of what's going on. If other spectrums were used, the core would look even brighter.
NGC 3254 spins out in space roughly 118 million light-years away from Earth. It was first documented by astronomer and composer William Herschel in 1785.
SEE ALSO:The most stunning space photos of 2021 so farThe bright blue light that stands out in the top center of the Hubble image, toward the outer rim of the galaxy's spiral, is a star-exploding supernova first spotted in 2019. Although we're just seeing it now, the supernova actually happened roughly 118 million years ago.
While NGC 2154 is a spiral galaxy similar to our own Milky Way, it is much more active. The Milky Way is not classified as a Seyfert galaxy. Only about 10% of galaxies may fit that Seyfert description — which may seem low, but there are billions, perhaps trillions of observable galaxies around us. That's a lot of highly active black holes.
Darth Vader is back. Why do we still care?2025-05-09 15:17
曼聯前瞻 :爭四關鍵戰役事關6分 C羅受傷出戰成疑2025-05-09 14:52
近5輪首勝!切爾西終返正軌 賽季四殺熱刺創紀錄2025-05-09 14:50
C羅因怕無法首發未加盟曼城 索帥早知他會破壞平衡2025-05-09 14:42
Nancy Pelosi warns colleagues after info hacked2025-05-09 13:39
朗尼克 :C羅問為何不下年輕人 5分鍾後年輕人進了2025-05-09 13:22
呂迪格遭開瓶器+打火機砸 圖赫爾:盡快製止這種事2025-05-09 13:20
國足12強賽名單出爐:武磊領銜戴偉浚入選 4歸化在列2025-05-09 13:19
Over 82,000 evacuate as Blue Cut fire rapidly spreads in southern California2025-05-09 13:08
開倒車!範迪克英超同期後衛進球最多 鐵腰裏程碑破門2025-05-09 12:54
Make money or go to Stanford? Katie Ledecky is left with an unfair choice.2025-05-09 15:31
轉會通:切爾西追一人被索6500萬歐 尤文再搶神鋒2025-05-09 14:59
利物浦VS水晶宮首發 :菲爾米諾若塔先發 範迪克登場2025-05-09 14:51
詹俊 :不絕殺非曼聯!爭四六分戰朗尼克賭贏了 !2025-05-09 14:22
Did our grandparents have the best beauty advice?2025-05-09 14:12
國足23日1時兵發日本 27人名單老將為主新意不足2025-05-09 14:08
鐵錘幫6000萬鎊挖三獅國腳神鋒 若進歐冠重重有賞2025-05-09 14:06
曼城前瞻 :藍月衝英超13連勝 斯特林丁丁雙劍出鞘2025-05-09 13:09
Old lady swatting at a cat ends up in Photoshop battle2025-05-09 13:09
2022年阿森納紅牌數比進球數還多 冬窗急需鋒線補強2025-05-09 12:52