Alcyonea, the largest radio galaxy ever observed

3 billion light-years from our tiny planet lurks a galaxy unlike any we’ve ever seen before. In fact, Alcyonée is a giant radio galaxy measuring 16.3 million light-years across, making it the largest known structure of galactic origin. In Greek mythology, Alcyoneus was one of the greatest giants, the son of Ouranos (Heaven) and Gaia … Read more

A “sleeping” black hole discovered for the first time outside our galaxy

It was estimated that many stellar black holes must exist in pairs with a star, but without tearing material from it and therefore could not signal themselves by shining in the form of X-rays after the accretion of this material. A candidate for such a “sleeping” black hole has just been discovered in the Large … Read more

A ‘glowing’ bubble of gas circles the Milky Way’s giant black hole at breakneck speed

On May 12, 2022, the very first image of the central black hole in our galaxy, Sagittarius A*, was revealed. Scientists have since continued their studies of this supermassive star. And by observing data from the Alma radio telescope, they made a surprising discovery: a bubble of glowing gas is orbiting the black hole at … Read more

The giant black hole at the center of our galaxy has erupted, and astronomers have seen it all!

While studying the supermassive black hole at the center of our galaxy, Sagittarius A*, scientists made a strange discovery: a bubble of glowing gas spinning around it at very high speed! A phenomenon that is explained by the eruption of black holes. On May 12, 2022, the very first image of our central black hole … Read more

This is what the activity of the giant black hole in the middle of the Milky Way would look like

A new technique to account for the rapid flicker of heated, bright matter that falls on the Milky Way’s supermassive black hole has sorted several growth models for this compact star. The model selected by the observations is one of those that can be simulated and therefore gives an idea of ​​what we should see … Read more

this is what Sgr A *’s activity would look like

A new technique to account for the rapid flicker of heated, bright matter that falls on the Milky Way’s supermassive black hole has sorted several growth models for this compact star. The model selected by the observations is one of those that can be simulated and therefore gives an idea of ​​what we should see … Read more