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Scientists Discover Matter Jet From Black Hole 50 Times Bigger Than Its Galaxy_我的网站

A |     One of the largest black hole jets in the sky has been uncovered by astronomers at Western Sydney University, new research published in the journal Monthly Notices of the Royal Astronomical Society has revealed.,According to the paper, in terms of distance from Earth, the galaxy NGC2663 is close by at just 93 million light-years.,With nearly ten times as many stars as our own Milky Way, it has the recognizable oval shape of a "typical" elliptical galaxy when viewed through a standard telescope. Led by astronomer Velibor Velovic of Western Sydney University, the research team used CSIRO's Australian Square Kilometre Array Pathfinder (ASKAP), a system of 36 connected radio dishes acting as a single super-telescope in Western Australia, to make their findings.,A core black hole's jet of material is visible in the radio waves as it leaves the galaxy. If our eyes could see it in the night sky, it would be larger than Earth's moon. This powerful torrent of material is approximately 50 times larger than the galaxy, stretched over almost 1 million light-years, according to the research.,The process studied by the scientists is rather similar to an effect seen in jet engines. The surrounding pressure pushes the exhaust plume from the sides as it rockets through the vacuum. As a result, the jet pulsates while expanding and contracting. Regular bright spots in the jet, called "shock diamonds" due to their shape, were observed by the team.,The flow glows brighter as it constricts.,Shock diamonds have been observed in smaller, galaxy-sized jets as well as in jet engines. Jets have been observed slamming into dense gas clouds, illuminating them as they pass through. However, a more subtle effect that makes it more difficult to see is the restriction of jets from the sides.,The paper underscored that astronomers have not observed this effect on such massive scales before NGC2663. This reportedly demonstrates that NGC2663 is surrounded by enough matter to push against the sides of the jet. The substance is then heated and pressurized by the jet.,A feedback loop is created when intergalactic matter enters a galaxy, which then creates a black hole that releases a jet. In turn, the jet decreases the inflow of intergalactic matter into galaxies. As the universe expands, these jets have an impact on how gas condenses into galaxies.,The Evolutionary Map of the Universe survey, which is also credited with discovering a new category of enigmatic astronomical object known as a "Odd Radio Circle," is still scanning the space.,‘Best Physical Models Can’t Fit The Data’: Radio Bursts Detected in Space ‘Defy’ Existing Theories7 August, 14:45 GMT。    8月24日消息，据报道，近期，第二届世界人形机器人运动会于国家速滑馆“冰丝带”正式开幕，开幕式结束后，大型组400米预赛随即展开，八场分组比拼轮番上演，赛场上却接连上演机器人摔倒的意外场面。    弯道成为众多机器人难以逾越的关卡。首场较量中，两台机器人起步后加速向前，可临近最后弯道时，一台机器人失衡倒地，机身迸出火花，遗憾没能完成比赛。          后续场次同样事故不断，有的机器人刚进入首个弯道就直接跌倒，由工作人员搬离赛场；还有一台机器人闯过两道弯道，即将进入第三个弯道时重重摔倒，甚至在跑道表面留下划痕。    赛场也不乏亮眼表现。经过工作人员抢修，天工队的机器人登场，跑出了39秒7的成绩，大幅改写上届赛事纪录，引得现场观众阵阵欢呼。

B |     余下场次里，多数机器人顺利跑完全程，但也出现小插曲，天链队一台机器人似乎没能识别发令信号，始终停留在起点。第八场的机器人更具戏剧性，摔倒后自行站起重返赛道，成功冲线，却在结束后撞上场地设备，机身直接散架。                    

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