committee investigating the house insurrection. five congressmen are subpoenaed including kevin mccarthy. and new evidence of possible war crime in ukraine. an exclusive on the general who ordered some of those acts of brutality. announcer: live from cnn. russia is reacting to finland s announcement that it homes to join nato with threats of retaliation. former president dmitri medvedev warns that it would strengthen its western flank. they called it a radical change in policy and a treaty vial participation will bring consequences. philipish leaders say their finnish leaders say it is a drastic change in the security environment after ukraine. helsinki admits there are no direct military threats right now and its extremely long border with russia is secure. finland has been a member of the european union since 1995. for years we ve been a very close partner to nato. so in that sense, this will not be such a major one and maybe it is not as big as people might think.
horizon telescope array. so all of these telescopes work together like a team. and everybody looked at these sources at the same time and everybody worked together to create an earth-sized telescope. so that we could create such an incredibly high resolution image. even though sagittarius star is massive, it is cosmically puny. a thousand times smaller than m-87 which is in a different galaxy, and seen here on the left. now, m-87 was the first black hole to be imaged. for our viewers on cnn international, world sport is next. for our viewers in north america, i ll be back with more news after this quick break. please stay with us.
the center of our swirling galaxy. it is 27,000 light years from earth and astronomers say this black hole is 4 million times more massive than our sun. black holes themselves don t emit light, so what are you seeing is the glow of light by its crushing gravity. all of these telescopes work together like a team and everybody looked at that ese sources at the same time and everybody worked together to create the earth-sized telescope so that we could create such an incredibly high resolution image. even though it is massive, it is cosmically puny, 1,000 times charger than m-87 which is seen
universe. they re cloaked by an event horizon where their gravity prevents even light from escaping. located 55 million light years away in a galaxy called m-87. in this galaxy, another black hole photo went viral the moment researcher katy bowman processed the first image. to see it, scientists in multiple countries around the world linked local telescopes to create this virtual observatory. predictably, twitter couldn t escape the doughnut memes. number four, in paris, a catastrophic fire shocked the world. the world famous notre dame cathedral is on fire. millions watched in disbelief as flames engulfed notre dame. the city s iconic 856-year-old cathedral. people screamed. it s so sad. what went through my mind was how people poured on to the streets to pray.
space. very disturbing news on how climate change is affecting our planet and new developments in the ways to protect our online data. nbc jake word joins me now to take a look at some of the biggest stories in science and technology. jake, where you want to start? you know, i think you got to start with really the story that i think encapsulate both the great and the terrible sides of humanity. and that, of course, is the black hole that we managed to take a picture of the event horizon network of telescopes here on earth. the fact that we were able to image something that even einstein, who predicted the existence of black holes said he was totally uncomfortable with the concept of. we managed to picture this. i mean, this is literally this unimaginable force. this emptiness at the center of a galaxy called m-87. that is about 55 million light years away from us. that jet of particles you are seeing is being shot out of it about 1,000 lightyears. i mean, just the incredibleness of