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 …

Light and waves in general have many practical applications. They are used in solar panels to produce electricity, in solar furnaces to produce heat or in image amplifiers to make …

Discussing computers, computers are of course used to reconstruct the images recorded by observatories, whether terrestrial or orbital, space probes as well as to build images from the radio signals …

In a few years, radio astronomers will also have access to a new generation radio telescope, the Square Kilometer Array (Square Kilometer Square or SKA) being built in Australia and …

Astronautics covers an extremely wide range of scientific and technical studies, from the chemistry of propellant mixtures (pergols), the study of materials and fluid mechanics to experiments in space biology, …

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 …

It has been known since the discovery of Heinrich Hertz in 1887 that radio waves are of the same nature as light waves. In particular they propagate in a vacuum …

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 …