时间:2026-04-18 02:44:19 来源:网络整理编辑:探索
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.

The full image of NGC 3254 in its bright, beautiful glory.Credit: ESA/Hubble & NASA, A. Riess et al.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.
You can now play 'Solitaire' and 'Tic2026-04-18 01:31
The 16 biggest tech stories of 20162026-04-18 01:04
Pilot congratulates passengers for finishing all the booze aboard a plane2026-04-18 01:03
Ikea trolls us all by naming products after Googled relationship questions2026-04-18 00:59
Whyd voice2026-04-18 00:40
The boy with the plastic bag Messi jersey has finally met his hero2026-04-18 00:36
Amazon Go is coming, so it's time to learn how to bag your own damn groceries2026-04-18 00:29
Oklahoma's public bathrooms will soon be forced to post anti2026-04-18 00:13
J.K. Rowling makes 'Harry Potter' joke about Olympics event2026-04-18 00:09
Super famous cat tweets feline Christmas song and it's glorious2026-04-18 00:02
Teacher absolutely nails it with new homework policy2026-04-18 02:27
Unicorn eyeliner is 2016's latest mythical beauty trend2026-04-18 02:21
'Luke Cage' second season on its way from Netflix2026-04-18 01:57
#Pizzagate might have claimed its first casualty in Trump’s team2026-04-18 01:56
Whyd voice2026-04-18 01:48
BuzzFeed regrets running a pirated stream of 'Monty Python' on Facebook Live2026-04-18 01:35
Everything you wanted to know about 'Rogue One' but were afraid to ask2026-04-18 01:21
How it felt to not know Trump won the election for 2 whole weeks2026-04-18 00:52
Here's what 'Game of Thrones' actors get up to between takes2026-04-18 00:41
Justin Bieber, Ariana Grande and Fith Harmony light up Jingle Ball2026-04-18 00:03