Black holes, the cosmic enigmas that defy the laws of physics, continue to captivate the imaginations of astronomers and enthusiasts alike. These mysterious celestial entities, characterized by their intense gravitational …
The Event Horizon Telescope (EHT) is a set of radio telescopes scattered all over the world and linked by interferometry, a VLBI designed to obtain a high-resolution image of the …
Of smaller size but which remains imposing and of different design, let us quote also the radio-telescope of Nançay of the CNRS installed in the Cher in France put in …
While the eye is sensitive only to the light perceived instantly, the silver medium (photo plate and films) that was still used until the 1980s can record the light received …