US President Donald Trump geared up to unveil sweeping new "Liberation Day" tariffs on Wednesday in a move that threatens to ignite a devastating global trade war. Key US trading partners including the European Union and Britain said they were preparing their responses to Trump's escalation, as nervous markets fell in Europe and America. Trump will unveil the levies in a grand ceremony with his cabinet members in the White House Rose Garden -- just as Wall Street stocks close at 4:00 pm (2000 GMT). "IT'S LIBERATION DAY IN AMERICA!" Trump posted a one-liner on his Truth Social platform early Wednesday. The 78-year-old has promised so-called reciprocal tariffs on friends and foes alike if they target the world's largest economy, saying the levies will stop the United States being "ripped off." But Trump has kept the world guessing until the last minute about the scale and scope, with the White House saying he was still "perfecting"...
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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