قالب وردپرس درنا توس
Home / Tag Archives: holes (page 4)

Tag Archives: holes

Black Holes Warning: Why Scientists Provided Poor Prospects for Life on Earth – "It's Bad" | Science | news

A black hole is a region of space-time that has a gravitational acceleration so strong that it says nothing can escape. But earlier this week, the scientists were stunned when a star shot out of a black hole in the middle of the Milky Way and made them question whatever they thought they knew. Nevertheless, American astrophysicist Neil deGrasse Tyson …

Read More »

Astronomers solve the mystery of small galaxies with Monster Black Holes

Paul M. Sutter is astrophysicist at Ohio State University host of Ask a Spaceman and Space Radio and author of [19659003] Dein Place in the universe . Sutter contributed this article to Space.com's Expert Voices: Op-Ed & Insights . Almost every galaxy in our universe seems to have a huge black hole at its center, including our own Milky Way …

Read More »

How black holes shape galaxies

Artistic impression showing how ultrafast winds emanating from a supermassive black hole interact with interstellar matter in the host galaxy and liberate their central regions from the gas. Credit: ESA / ATG medialab Data from the XMM Newton X-ray Observatory of ESA have shown how supermassive black holes shape their host galaxies with strong winds that sweep away interstellar matter. …

Read More »

These bizarre objects may have "supersaturated" supermassive black holes

Dark Stars Astronomers have set up a new theory for the formation of supermassive black holes. Extremely bright objects that appeared shortly before the birth of the universe – theoretical objects that are referred to as "dark stars" – could have seeded supermassive black holes over millions of years, according to a new astronomy story about physicist Katherine Freese of …

Read More »

Where do supermassive black holes come from?

Astronomers have a pretty good idea of ​​how most black holes form: a massive star dies, and when it passes a supernova, the remaining mass collapses (if there's enough of it) under the force of its own Gravity and leaves it behind a black hole that lies between five times and 50 times the mass of our sun. What does …

Read More »

Are these supermassive black holes on a collision course?

Meanwhile, the fusion of black holes and the gravitational waves they produce is a scientific certainty. Astronomers have observed several black holes merging, all between star-mass black holes that are less than 100 times the mass of our Sun. But merges between supermassive black holes millions of or billion times the size of our star have never been seen. And …

Read More »

Two Supermassive Black Holes Are On A Devastating Crash Course

Collision Course Two supermassive black holes, each of them more than a million times lighter than our sun. Thankfully, the two black holes are both about 2.5 billion light-years The Astrophysical Journal Letters on Wednesday, so it will take long for astronomers to detect the cosmic waves given off by the collision. When the black holes reach the final days …

Read More »

Pair of supermassive black holes discovered on a collision course

A galaxy roughly 2.5 billion light-years away has a pair of supermassive black holes (inset). The locations of the black holes are lit up by warm gas and bright stars that surround the objects. Astronomers wants first detect gravitational wave background generated by supermassive black holes. Credit: A.D. Goulding et al. / Astrophysical Journal Letters 2019              Astronomers have spotted …

Read More »