时间:2025-04-02 18:09:18 来源:网络整理编辑:百科
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.
Dog elected for third term as mayor of Minnesota town2025-04-02 17:21
九個月的寶寶吃什麽魚比較好?2025-04-02 17:08
龜頭一邊腫了怎麽回事2025-04-02 16:54
寶寶換奶粉後便秘怎麽辦2025-04-02 16:45
One of the most controversial power struggles in media comes to a close2025-04-02 16:37
九個月的寶寶吃什麽魚比較好 ?2025-04-02 16:19
3個月聽力篩查未通過怎麽回事?2025-04-02 16:15
3個月聽力篩查未通過怎麽回事 ?2025-04-02 15:54
Felix the cat just raised £5000 for charity because she's the hero we all need2025-04-02 15:30
寶寶大便總是拉一點點是怎麽回事 ?2025-04-02 15:23
Two states took big steps this week to get rid of the tampon tax2025-04-02 18:04
孕36周小便發現有一點點血絲2025-04-02 18:02
Get up to 57% off Anker charging accessories at Amazon2025-04-02 17:40
八個月寶寶牙齦上有白點怎麽回事2025-04-02 17:33
This German startup wants to be your bank (without being a bank)2025-04-02 17:18
破腹產後多久可以吃東西2025-04-02 17:09
竹筍炒蝦仁怎麽做最簡單 ?2025-04-02 17:01
黑棗一天吃多少粒為宜2025-04-02 16:52
Olympic security asks female Iranian fan to drop protest sign2025-04-02 16:31
生小孩後有妊娠紋怎麽辦?2025-04-02 16:27