Scientists Detect Longest Pair of Jets Streaming from Supermassive Black Hole

This undated artist’s impression illustrates how it might look when a star approaches too close to a black hole, where the star is squeezed by the intense gravitational pull of the black hole. ESO/M.Kornmesser/Handout via REUTERS
This undated artist’s impression illustrates how it might look when a star approaches too close to a black hole, where the star is squeezed by the intense gravitational pull of the black hole. ESO/M.Kornmesser/Handout via REUTERS
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Scientists Detect Longest Pair of Jets Streaming from Supermassive Black Hole

This undated artist’s impression illustrates how it might look when a star approaches too close to a black hole, where the star is squeezed by the intense gravitational pull of the black hole. ESO/M.Kornmesser/Handout via REUTERS
This undated artist’s impression illustrates how it might look when a star approaches too close to a black hole, where the star is squeezed by the intense gravitational pull of the black hole. ESO/M.Kornmesser/Handout via REUTERS

Scientists have discovered the longest pair of jets streaming from a black hole in a distant galaxy.
The jets shooting hot plasma are the largest ever spotted – about as long as 140 Milky Way galaxies lined up end-to-end.
“This one has managed to reach a size that’s so big,” said Eileen Meyer, who studies black holes at University of Maryland, Baltimore County and who was not involved in the study.
The discovery, made using images from a European radio telescope, was reported Wednesday in the journal Nature, The Associated Press said.
Black holes eat most space debris that falls their way. Sometimes, heated-up plasma makes a narrow escape by spewing out in thin, high-energy jets.
The jets can break apart soon after their creation, jostled by space turbulence or starved in the absence of new matter. But jets from supermassive black holes can become supersized.
The latest combined jets from a faraway supermassive black hole are around 23 million light-years long. That’s about 7 million light-years longer than the previous recordholder. A light-year is 5.8 trillion miles.
Study co-author Martijn Oei said researchers weren’t expecting to find long black hole jets so early in the universe’s history. The jets date back to when the universe was less than half its current age.
Studying the jets could reveal whether they had an influence on how the early universe came to be, said Oei with the California Institute of Technology.



'Social Studies' TV Series Takes Intimate Dive into Teens' Smartphone Life

This is the first generation born into a world with widespread social media. LOIC VENANCE / AFP/File
This is the first generation born into a world with widespread social media. LOIC VENANCE / AFP/File
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'Social Studies' TV Series Takes Intimate Dive into Teens' Smartphone Life

This is the first generation born into a world with widespread social media. LOIC VENANCE / AFP/File
This is the first generation born into a world with widespread social media. LOIC VENANCE / AFP/File

Sifting through the smartphones of dozens of US teens who agreed to share their social media content over the course of a year, filmmaker Lauren Greenfield came to a somber observation.
The kids are "very, very conscious of the mostly negative effects" these platforms are having on them -- and yet they just can't quit.
Greenfield's documentary series "Social Studies," premiering on Disney's FX and Hulu on Friday, arrives at a time of proliferating warnings about the dangers of social networks, particularly on young minds.
The show offers a frightening but moving immersion into the online lives of Gen Z youths, AFP said.
Across five roughly hour-long episodes, viewers get a crash course in just how much more difficult those thorny adolescent years have become in a world governed by algorithms.
In particular, the challenges faced by young people between ages 16 and 20 center on the permanent social pressure induced by platforms like Instagram and TikTok.
For example, we meet Sydney, who earns social media "likes" through increasingly revealing outfits; Jonathan, a diligent student who misses out on his top university picks and is immediately confronted with triumphant "stories" of those who were admitted; and Cooper, disturbed by accounts that glorify anorexia.
"I think social media makes a lot of teens feel like shit, but they don't know how to get off it," says Cooper, in the series.
'Like me more'
This is the first generation born into a world with widespread social media.
Via its subjects' personal smartphone accounts, the show offers a rare glimpse into the ways in which that hyper-connected reality has distorted the process of growing up.
We see how young people modify their body shapes with the swipe of a finger before posting photos, the panic that grips a high school due to fake rumors of a shooting.
"It's hard to tell what's been put into your mind, and what you actually like," says one anonymous girl, in a group discussion filmed for the docuseries.
These discussion circles between adolescents punctuate "Social Studies," and reveal the contradictions between the many young people's online personas, and their underlying anxieties.
Speaking candidly in a group, they complain about harassment, the lack of regulation on social media platforms, and the impossible beauty standards hammered home by their smartphones.
"If I see people with a six pack, I'm like: 'I want that.' Because maybe people would like me more," admits an anonymous Latino boy.
'Lost your social life'
The series is not entirely downbeat.
But the overall sense is a generation disoriented by the great digital whirlwind.
There are no psychologists or computer scientists in the series.
"The experts are the kids," Greenfield told a press conference this summer. "It was actually an opportunity to not go in with any preconceptions."
While "Social Studies" does not offer any judgment, its evidence would appear to support many of the recent health warnings surrounding hyper-online young people.
The US surgeon general, the country's top doctor, recently called for warning labels on social media platforms, which he said were incubating a mental health crisis.
And banning smartphones in schools appears to be a rare area of bipartisan consensus in a politically polarized nation.
Republican-led Florida has implemented a ban, and the Democratic governor of California signed a new law curbing phone use in schools on Monday.
"Collective action is the only way," said Greenfield.
Teenagers "all say 'if you're the only one that goes off (social media), you lost your social life.'"