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Behind Kohli's Perth Tactic, England Great's Justification: "Had To Do..."

Former England captain Michael Vaughan has defended star India batter Virat Kohli after his flop show with the bat in the 1st innings of the Perth Test against Australia. Kohli managed just five runs before fending off a climbing Josh Hazlewood delivery to Usman Khawaja at slip. His 12-ball stay in the middle extended his lean patch with the bat, having managed just 93 runs in the recent home series loss to New Zealand. The former India captain hasn't scored a century since the West Indies tour last year. Vaughan, however, refused to rule Kohli out just yet despite his failure in the 1st innings in Perth. He suggested it's too early to judge Kohli, highlighting how the excessive seam movement made life difficult for most batters. "It is too hard to judge him. Coming out of the crease in Perth when the ball is bouncing is a tactic not many try to pull off and he went for that. It bounced and he found the outside edge. But I think that now we have seen Australia (bat),
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Scientists Discover Supermassive Blackhole Pointing Directly At Earth

A team of international astronomers have reclassified a galaxy after finding that a supermassive black hole in its centre has changed direction and is now aiming towards the Earth. The galaxy in question is found 657 million light-years away from us and goes by the name of PBC J2333.9-2343. 

"We started to study this galaxy as it showed peculiar properties. Our hypothesis was that the relativistic jet of its supermassive black hole had changed its direction, and to confirm that idea we had to carry out a lot of observations," said Dr Lorena Hernandez-Garcia, according to the Royal Astronomical Society (RAS). 

In a study, the astronomers detailed the change. According to them, the galaxy was initially classified as a radio galaxy but scientists realised that the space phenomena had rotated 90 degrees and is now pointing its centre towards Earth. 

This means that the galaxy is now a "blazar", which means a galaxy point which has jet points pointing at Earth. According to RAS, blazars are very high-energy objects and are considered to be one of the most powerful phenomena in the Universe. 

Also Read | Experts Explain The Science Behind Why Heartbreak Hurts So Much

Astronomers said that the jet material from the black hole has created two huge lobes on either side of the galaxy, and they are the most immediately notable thing when observed with radio waves. 

"The fact that we see the nucleus is not feeding the lobes anymore means that they are very old. They are the relics of past activity, whereas the structures located closer to the nucleus represent younger and active jets," Hernandez-Garcia said. 

In the study, scientists said that they are currently unsure what sparked the change in direction, though some astronomers believe that PBC J2333.9-2343 collided with another galaxy, resulting in the shift of direction.

It is also not clear how the direction of the black hole will affect our galaxy. 



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