
M87*
2019 CE
Making a Telescope the Size of Earth
The image of M87* was made by linking radio observatories around the world, creating a virtual dish nearly as wide as Earth. By observing at millimetre wavelengths and combining data with very long baseline interferometry, astronomers reconstructed a ring of emission encircling a dark central shadow, matching predictions from general relativity for a spinning black hole.
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The image of M87* was made by linking radio observatories around the world, creating a virtual dish nearly as wide as Earth. By observing at millimetre wavelengths and combining data with very long baseline interferometry, astronomers reconstructed a ring of emission encircling a dark central shadow, matching predictions from general relativity for a spinning black hole.






























































