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The DESI instrument observing the sky from the Nicholas U. Mayall Telescope during a meteor shower KPNO/NOIRLab/NSF/AURA/R. Sparks Albert Einstein’s theory of general relativity has been proven right on the largest scale yet. An analysis of millions of galaxies shows that the way they have evolved and clustered over billions of years is consistent with […]
A simulation of a black hole Hotaka Shiokawa/EHT General relativity teaches us that reality is, in some sense, a matter of perspective. Consider how someone who is “falling” into a black hole sees something completely different to an observer trying to watch that someone cross the event horizon, a black hole’s edge. The person actually […]