您现在的位置是:知識 >>正文
【】
知識8人已围观
简介It's been a big year for black holes. Back in April, NASA gave us our first direct glimpse of an exi ...
It's been a big year for black holes. Back in April, NASA gave us our first direct glimpse of an existentially terrifying gravitational event, and now, the agency has gotten another look at what one can do to a star much like our own sun.
NASA announced this week that Transiting Exoplanet Survey Satellite (or TESS) managed to spot what's called a tidal disruption event. In layman's terms, that's when a star gets a little too close to a black hole and, well, it stops being a star after that.
There's a lot of fun space lingo at play here. NASA is calling the event ASASSN-19bt, named after the ASAS-SN telescope network that first noticed the tidal disruption back in January. Once the star got close enough to the black hole, it experienced something known as "spaghettification," which is when an object encounters gravity so powerful that it gets stretched out like noodles.
This particular black hole is around 375 million lightyears away in the elegantly named galaxy of 2MASX J07001137-6602251. NASA estimates it weighs six million times the mass of our own sun, which happens to be comparable in size to the star that tragically lost its life to this tidal disruption event.
To be clear, this isn't the first time humans have seen a tidal disruption event, though they are astonishingly rare. They happen somewhere between every 10,000 and 100,000 years in a comparable galaxy to our own. NASA said astronomers have seen 40 of these events, though few have been observed as early as the one TESS caught.
Any direct observation of a black hole is notable because black holes can't really be seen, by nature. It's a point in space where gravity is so strong that not even light can escape its grasp, but we can still observe its effects on things around it. The famous first-ever photo of a black hole earlier this year was in actuality a photo of gas gathered around a black hole.
That means we should relish any chance we get to see what a black hole can do, and be glad that it's not happening anywhere near us.
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/10e52799462.html
相关文章
Early Apple
知識One of the first Apple computers ever made is currently up for auction.A rare "Celebration" Apple-1 ...
【知識】
阅读更多Global warming is pushing the Arctic into 'unprecedented' era
知識Each year for the past 12 years, an international team of scientists have issued a "report card" on ...
【知識】
阅读更多Bitcoin's rise presents a problem
知識It was never meant to be this way. With the price of Bitcoin skyrocketing by the hour, it's either t ...
【知識】
阅读更多
热门文章
- Nancy Pelosi warns colleagues after info hacked
- 'Tobu Tobu Girl' is an adorable new game for Game Boy. Yes, Game Boy.
- Lorde's cancelled Israel show sparks meeting request with ambassador
- Crowd has the best comeback after fan told to put shoes back on
- Katy Perry talks 'Rise,' her next batch of songs, and how to survive Twitter
- Queen of Christmas Mariah Carey has issued her order on when to take down the tree
最新文章
PlayStation Now game streaming is coming to PC
Sia responds on Twitter to article questioning the ethics of putting child dancer in the limelight
Alcoholic gift ideas that say, 'Your political opinions are worth hearing'
Everything you need to know about the internet's new obsession with eating Tide pods
Metallica to seek and destroy your eardrums with new album this fall
Donald Trump's slurred speech confuses the hell out of Trevor Noah