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.



China Says its Astronauts Complete Record-breaking Spacewalk

File Photo: Astronaut Liu Yang waves as she is out of a return capsule of the Shenzhou-14 spacecraft, following a six-month mission on China's space station, at the Dongfeng landing site in Inner Mongolia Autonomous Region, China December 4, 2022. China Daily via REUTERS
File Photo: Astronaut Liu Yang waves as she is out of a return capsule of the Shenzhou-14 spacecraft, following a six-month mission on China's space station, at the Dongfeng landing site in Inner Mongolia Autonomous Region, China December 4, 2022. China Daily via REUTERS
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China Says its Astronauts Complete Record-breaking Spacewalk

File Photo: Astronaut Liu Yang waves as she is out of a return capsule of the Shenzhou-14 spacecraft, following a six-month mission on China's space station, at the Dongfeng landing site in Inner Mongolia Autonomous Region, China December 4, 2022. China Daily via REUTERS
File Photo: Astronaut Liu Yang waves as she is out of a return capsule of the Shenzhou-14 spacecraft, following a six-month mission on China's space station, at the Dongfeng landing site in Inner Mongolia Autonomous Region, China December 4, 2022. China Daily via REUTERS

Two Chinese astronauts this week completed a world-record spacewalk of more than nine hours, according to a statement from China's Manned Space Agency, marking another milestone for Beijing's rapidly expanding space program.

The spacewalk, carried out by Cai Xuzhe and Song Lingdong outside the Tiangong space station in low-Earth orbit on Tuesday, was at least four minutes longer than the last record set by NASA astronauts James Voss and Susan Helms in 2001, according to Reuters.

The two astronauts of China's Shenzhou-19 mission donned their Feitian spacesuits to carry out an array of tasks on the station's exterior, including the installation of space-debris protection devices, China's space agency said.

"They successfully completed all the planned tasks and felt very excited about it," Wu Hao, a staffer from the China Astronaut Research and Training Center, told China Central Television, a state broadcaster.

The former Soviet Union in 1965 became the first nation to carry out a spacewalk. Since then, Russia and the United States have conducted hundreds of such missions, primarily outside the International Space Station for tasks ranging from solar panel installations to materials research.

The first spacewalk by a Chinese astronaut occurred in 2008.

China's spacewalking milestone this week comes amid a flurry of other recent cosmic achievements that have boosted Beijing's competitive footing with the United States.

China landed its first rover on Mars in 2021 and earlier this year became the first country to retrieve rock samples from the moon's treacherous far side in its Chang'e-6 mission.

Beijing is targeting 2030 to land its first astronauts on the moon to become the second country after the US to put humans there. Beijing has courted roughly a dozen countries for its International Lunar Research Station program, an effort to build a moon base on the moon's south pole.

That program rivals NASA's Artemis program, which aims to return US astronauts to the moon for the first time since the final Apollo mission of 1972.