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.
(责任编辑:探索)
賽後一舉動彰顯梅西無奈,和迪馬利亞擁抱,竟隻有對手懂他(萊萬評價梅西)
世界杯悲喜夜:韓國絕殺出線,烏拉圭爭議出局,1/8決賽對陣出爐(歐洲葡萄牙8強)
今日公推解說:克羅地亞VS巴西 ,世界杯預測,賽前快速分析(克羅地亞與西班牙預測實力對比)
不要臉 !韓媒瘋狂嘲諷葡萄牙和韓國同組,放話教訓C羅讓他後悔(韓國與葡萄牙有仇)
2:0完勝波蘭 !梅西罰丟點球後,阿根廷最可怕的一麵展露無餘(阿根廷對波蘭)
【波盈足球】 世足否認C羅引爆葡萄牙內亂 隊友幫喊話:誰坐板凳會開心? ( 葡萄牙,板凳 )
Pokémon Go is so big that it has its own VR porn parody now
世界杯首次6大洲晉級誕生!亞洲16強紀錄+奇跡之約:梅西+C羅決賽(16年歐洲杯葡萄牙奪冠)