The terms in bold link to topics in the AQA, Edexcel, OCR, WJEC and CCEA A-level specifications, as well as the IB, Pre-U and SQA exam specifications.
The EHT is a radio telescope that uses interferometry to achieve a resolution of 25 micro arcseconds. Its image of a black hole confirms the predictions of the theory of general relativity in an extreme gravitational field.
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