您现在的位置是:熱點 >>正文
【】
熱點1人已围观
简介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.
Related Video: Mars will kill you in ways you'd never imagine
Tags:
转载:欢迎各位朋友分享到网络,但转载请说明文章出处“夫榮妻貴網”。http://new.maomao321.com/news/46d2999924.html
相关文章
Whyd voice
熱點Amazon's Echo made controlling music with your voice easy-peasy, but its sound quality could be a lo ...
【熱點】
阅读更多What's coming to Netflix January 2018
熱點How best do you start 2018? What will be the first show or movie you watch? Surely, the first stream ...
【熱點】
阅读更多Rose McGowan slams women planning to protest Golden Globes by wearing all black
熱點Rose McGowan is not interested in your symbolic protests, Hollywood.On Saturday, McGowan turned her ...
【熱點】
阅读更多
热门文章
- This coloring book is here for all your relationship goals
- Team behind Time's Person of the Year issue was all women
- Doug Jones won Alabama and people are so, so happy
- The last great internet debate of 2017 is: How should you cut your toast?
- Dressage horse dancing to 'Smooth' by Santana wins gold for chillest horse
- Someone made Donald Trump the perfect Christmas present and he couldn't be happier
最新文章
Tyler, the Creator helped Frank Ocean celebrate 'Blonde' release in a delicious way
Closeup snowflake photos help you appreciate the beauty of snow
The founder of Litecoin no longer owns any of his own cryptocurrency
Google, NASA find alien planet using machine learning
Metallica to seek and destroy your eardrums with new album this fall
Coinbase reminds users Bitcoin is risky
