时间:2024-09-20 06:29:51 来源:网络整理编辑:時尚
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.
Samsung Galaxy Note7 teardown reveals the magic behind the phone's iris scanner2024-09-20 06:29
Michael Phelps says goodbye to the pool with Olympic gold2024-09-20 05:38
Visualizing July's astounding global temperature records2024-09-20 05:26
Felix the cat just raised £5000 for charity because she's the hero we all need2024-09-20 05:23
You will love/hate Cards Against Humanity's new fortune cookies2024-09-20 05:17
Balloon fanatic Tim Kaine is also, of course, very good at harmonica2024-09-20 05:12
'Rocket League' Championship Series Season 2 offers $250,000 prize pool2024-09-20 04:41
Donald Trump's tangled web of Russian influence2024-09-20 04:15
Daughter gives her 1002024-09-20 04:09
Chinese gymnastics team horrifies crowd with human jump rope2024-09-20 04:06
Two astronauts just installed a new parking spot on the International Space Station2024-09-20 04:47
We asked linguists if Donald Trump speaks like that on purpose2024-09-20 04:44
Singapore rolls out video2024-09-20 04:28
'Rocket League' Championship Series Season 2 offers $250,000 prize pool2024-09-20 03:57
New Zealand designer's photo series celebrates the elegance of aging2024-09-20 03:56
This company is hiring someone just to drink all day2024-09-20 03:53
How Hyperloop One went off the rails2024-09-20 03:52
J.K. Rowling makes 'Harry Potter' joke about Olympics event2024-09-20 03:51
Olympic security asks female Iranian fan to drop protest sign2024-09-20 03:50
U.S. pole vaulter skids to a halt for national anthem2024-09-20 03:49