The first iconic image of a black hole looked like a fuzzy, orange donut, but now that picture has been sharpened up to a fiery ring, thanks to computer simulations and machine learning.
Even so, she says,"we're always going to be trying to improve and always going to be trying to have an ever-better image."
Instead, the researchers have to deal with gaps in their data by making certain assumptions and doing a ton of calculations. Learning the correlations between the bits of the images helped them better fill in the gaps created by missing data, she says. And the resulting new image is consistent with the old one, but the ring of hot gasses swirling around the black hole is significantly thinner.
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