Astronomers believe the black hole exploded about 3. The explosion was so powerful it struck the Magellanic Stream — a trail of cosmic gas about , light-years away. Could one threaten Earth? The black hole sits an approximate 26, light-years or ,,,,, miles from Earth. Supermassive black holes are one of the two recognised types of black holes but there are other theoretical types. Black holes are created through the gravitational collapse of a massive star at the end of its lifetime.
How We Discovered the Black Hole at the Center of Our Galaxy
Supermassive black hole - Wikipedia
This is considered to be 'astonishingly recent' in galactic terms and is changing what scientists thought they knew about our galaxy. Professor Lisa Kewley, who worked on the study, said: "This is a dramatic event that happened a few million years ago in the Milky Way's history. It is lucky we're not residing there! The cataclysmic blast ripped through our galaxy and was likely felt ,00 light years away in the Magellanic Stream. It is considered to be a recent event because when it happened the dinosaurs had already been wiped out for 63million years and human ancestors were already walking on Earth. The astronomers think it would have created two enormous 'ionisation cones' that would have sliced through the Milky Way.
Once considered a mathematical curiosity, black holes have taken center stage in cosmology A Singular Place. The relationship between black holes and galaxies L ike discovering a neighborhood house assumed to be vacant is actually inhabited, over the past decade researchers realized that most galaxies have at least one black hole in residence in their central regions. But these black holes aren't the stellar variety with three to ten times the mass of our Sun.
The supermassive black hole at the heart of our Galaxy spat out an enormous flare of radiation 3. In new research that will soon be published in the Astrophysical Journal my colleagues and I found that the flare left traces in a trail of gas called the Magellanic Stream that lies some , light years away and encircles the Milky Way. Astronomers are coming to realise that it has been hugely active, even explosive, in the relatively recent past in galactic terms measured in millions of years. This activity has been flickering on and off for billions of years. It might be like water droplets on a hot plate that sputter and explode chaotically, depending on their size.