Terms such as "expanding Universe", "big bang", and "initial singularity", are nowadays part of our common language. ...
اقرأ المزيدIn the last 45 years, X-ray astronomy has become an integral part of modern astrophysics and cosmology. There is a wide range ...
اقرأ المزيدThis set of extensive lectures presents a balanced theoretical and experimental introduction to, and survey of, the field, ...
اقرأ المزيدIn the last two decades of the 20th century, we obtained our first detailed look at a cometary nucleus and detected objects ...
اقرأ المزيدIt is well established and appreciated by now that more than 99% of the baryonic matter in the universe is in the plasma ...
اقرأ المزيدProfessor Kopal, who devoted 60 years of his scientific life to the exploration of close binary systems, initiated a breakthrough ...
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