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Is the Expanding Universe Affecting Black Holes across the Cosmos?

By: April Carson

Since scientists witnessed the merging of black holes for the first time in 2010, telescopes throughout the world have been recording more and more of the same things. Black hole mergers added to our knowledge while posing a slew of new questions. Some of the discovered black holes were just too enormous, giving scientists a new problem to deal with.

Black holes are believed to grow as the universe expands

The discovery of black hole mergers confirms a long-standing Einstein theory of general relativity prediction. Because black holes emit no light, the only way to find them and observe the processes around or within them is through gravitational waves. They have been posited years ago, and in 2015 they were finally verified.

Since 2015, astronomers have discovered new merging black holes throughout the world, but not all of them were the same. The mass of some mergers continues to amaze scientists.

How massive?

A black hole was thought not to exceed 40 times the mass of our sun in the 1970s, according to physicists. We now know that this prediction is far from accurate. Astronomers have discovered a slew of black holes with masses ranging from 50 to 100 Suns.

Scientists have been attempting to figure out how these things arose for a long time. While a few of the concepts have enough context to be considered, one key issue prevents physicists from reaching a consensus. The many merging black holes can't be accounted for by any existing models.

An alternative theory to the conventional one that black holes form and develop has been proposed by a group of physicists. According to it, both little and big black holes may arise in similar ways because their formation is governed by something else: the universe's expansion.


Physicists decided to try something new by testing an innovative technique. In most cases, black hole models include objects in a theoretical world that does not develop. The problem with this conventional approach is that our universe continues to expand at an ever-increasing rate, and these theories are little more than ephemeral. And this is why mass mergers and black hole collisions on a cosmic scale may not happen as often as we first thought.

Instead, scientists sought to understand such things from the perspective of an ever-expanding universe. They note that black hole mergers must have occurred for hundreds of millions or even billions of years. The pair of black holes was initially generated, but in order to get to their merging state, they had to grow as the cosmos expanded.

Does this new model change anything?

In addition to providing a clear, yet effective explanation for the universe's birth, this new cosmological model does not supplant or challenge previous knowledge of the cosmos' evolution. It simply implies that conventional ideas in a static universe do not apply entirely.

Black hole collisions are a consequence of the Big Bang and represent one of many mysteries that scientists have yet to solve. According to their calculations, black hole growth is likely linked to the universe's expansion. There is no better model at present to explain this occurrence.

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About the Blogger:

April Carson is the daughter of Billy Carson. She received her bachelor's degree in Social Sciences from Jacksonville University, where she was also on the Women's Basketball team. She now has a successful clothing company that specializes in organic baby clothes and other items. Take a look at their most popular fall fashions on

To read more of April's blogs, check out her website! She publishes new blogs on a daily basis, including the most helpful mommy advice and baby care tips! Follow on IG @bossbabymav





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