The Milky Way galaxy isn t very active, as far as galaxies go. Every year, it produces around three to four Suns worth of new stars in the entirety of its spiral body, and stars of all ages can be found sprinkled throughout.
We all know that a humongous black hole exists at the center of our galaxy. It s called Sagittarius A (Sgr A for short) and it has the mass of 4 million suns. We got to see a radio image of it a few weeks back, showing its accretion disk.
that, enable them to encircle some ukrainian troops. that s significant. there are other places though in kharkiv where you see on your map, you have ukrainian forces pushing back much more successfully. so there s back and forth and as we mentioned a ship in the black sea, a russian supportive naval ship which is on fire. we re not sure exactly why, but you have russians trying to push that front and fighting in places like odesa today. so listen. we are seeing something for the very first time. you re looking, in a minute, at a massive, supermassive i just said we re going to see it for the first time in a minute. look, guys. can you see it? massive. i m sure you know exactly what that is, and we ll t talk more about it next.
We might not be able to hear sound in space, but that doesn t mean there isn t any. In 2003, astronomers detected something truly astonishing: acoustic waves propagating through the gas surrounding a supermassive black hole, 250 million light-years