Professor Meghan Gray explains the sometimes strange phenomenon of twin quasars. More links and info in full description ↓↓↓

Professor Gray is an astronomy professor at The University of Nottingham - https://www.nottingham.ac.uk/physics/...

A close quasar pair in a disk–disk galaxy merger at z = 2.17 - https://doi.org/10.1038/s41586-023-05...

0957+561 A, B: twin quasistellar objects or gravitational lens? - https://ui.adsabs.harvard.edu/abs/197...

MULTIPLE-MIRROR TELESCOPE OBSERVATIONS OF THE TWIN QSOs 0957+561 A,B - https://articles.adsabs.harvard.edu/p...

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Video by Brady Haran and James Hennessy