The disc of plasma surrounding the black hole at the heart of the Milky Way is constantly emitting flares both large and small.

Sagittarius A* has been seen by human eyes with an "image produced by a global research team called the Event Horizon ...

ESO/L. Calçada, N. Risinger (skysurvey.org), DSS, VISTA, VVV Survey/D. Minniti DSS, Nogueras-Lara et al., Schoedel, NACO, GRAVITY Collaboration, EHT Collaboration (Music: Azul Cobalto) ...

There are millions of galaxies in the universe, and while astronomers have cataloged many, some remain relatively unknown to ...

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