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alwaysasking.com
| | profmattstrassler.com
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| | Einstein's gravity is widely seen as the most beautiful theory in all of physics. But dark energy, quantum physics, and string theory all raise questions.
| | tritonstation.com
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| | I want to take another step back in perspective from the last post to say a few words about what the radial acceleration relation (RAR) means and what it doesn't mean. Here it is again: The Radial Acceleration Relation over many decades. The grey region is forbidden - there cannot be less acceleration than caused...
| | tritonstation.com
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| | Given recent developments in the long-running hunt for dark matter and the difficulty interpreting what this means, it seems like a good juncture to re-up* this: The history of science is a decision tree. Vertices appear where we must take one or another branching. Sometimes, we take the wrong road for the right reasons. A...
| | science.nasa.gov
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| Editor's Note: This post highlights data from Webb science in progress, which has not yet been through the peer-review process. In November 2023, NASA's James Webb Space Telescope observed a massive cluster of galaxies named MACS J0138.0-2155. Through an effect called gravitational lensing, first predicted by Albert Einstein, a distant galaxy named MRG-M0138 appears warped by ...