Day 1 of the first Test between India and Sri Lanka in Galle witnessed a scary moment as KL Rahul 's shot struck Nishan Madushka on the helmet. After winning the toss, India skipper Shubman Gill opted to bat first as the visitors began their 600th Test match. Openers KL Rahul and Yashasvi Jaiswal looked in fine touch and provided India with a solid start. However, during the 10th over, bowled by Prabath Jayasuriya , Rahul's shot crashed into Madushka, leaving players and spectators stunned. On the fifth ball of the over, Rahul attempted a low sweep. Madushka, stationed at short leg, realised he was in trouble and tried to duck, but the ball struck the centre of his helmet. The impact immediately prompted Sri Lanka's team physio to rush onto the field. Seeing Madushka down, Rahul initially hesitated before taking a single, but Jaiswal had already crossed halfway down the pitch, leaving him with no option but to complete the run. Afterward, Rahul immediately went over t...
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.
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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.
from NDTV News- Special https://ift.tt/zV01dZW
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