Science, Space and Technology News 2023
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Two black holes are about to merge in this still from a simulation produced by the Simulating eXtreme Spacetimes, or SXS, collaboration using supercomputers. As the black holes spiral together, they produce ripples in space and time called gravitational waves. Credit: SXS Lensing/Simulating eXtreme Spacetimes Collaboration
The physicists then compare the numerical data from these simulations to models of the process. Older versions of the models showed the gravitational waves not influencing or interacting with each other. However, scientists suspected this wasn’t accurate. Think about two people standing next to each other in a pool, making waves. If each one of them is making very small waves, it’s possible the waves won’t interfere with each other. They’ll die out before they interact.
In addition, better models can help scientists figure out if general relativity is the right theory to explain what actually happens in black holes. While general relativity – the famous theory developed by Einstein – broadly explains how gravity affects spacetime, how well this theory applies to the strange properties of black holes is still to be determined.Black hole collisions are unimaginably far from Earth and our everyday lives.
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