As an expert in astrophysics, I can tell you that there isn't a definitive answer to what the most powerful thing in the universe is, as it depends on the context in which you are considering "power." If we're talking about energy, then black holes are often cited as some of the most powerful objects due to their immense gravitational pull. In terms of sheer force, gamma-ray bursts, which are extremely energetic explosions that occur in distant galaxies, are among the most powerful events known.

However, if we consider "power" in a more abstract sense, such as the ability to influence the universe on a large scale, then perhaps dark matter and dark energy are the most powerful, as they are believed to make up the majority of the universe's mass-energy content and are responsible for the expansion of the universe.

It's important to note that our understanding of the universe is constantly evolving, and what we consider "powerful" today might be revised as new discoveries are made.

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That's about the same amount of energy in 10 trillion trillion billion megaton bombs! These explosions generate beams of high-energy radiation, called gamma-ray bursts (GRBs), which are considered by astronomers to be the most powerful thing in the universe.read more >>