Some astronomers are investigating alternative theories to those established by Newton and Einstein, but not everyone is convinced.
—and discontent with news articles creating the impression that this work is a decisive victory for modified gravity. Depending on what stars scientists include in their analysis, the results vary, and these scientists currently disagree on what assumptions are the correct ones to make.
“If anyone is truly skeptical, he/she should try to disprove my results,” counters Chae. However, he empathizes with the motivation for some of the disbelief. Current modified gravity theories are “like the Bohr model of atoms without quantum physics developed yet. But, we need to remember that quantum physics was eventually developed,” he adds.
Only time and many other tests will be able to determine which theory will come out on top, and if dark matter is a particle or just a tweak to gravity. “We have these binary stars orbiting each other in front of us, and not doing what Newton said they should be doing,” says Hernandez. “Not considering modified gravity is no longer an option.”
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