The aim of astrophysics is to describe, to understand and to predict the physical phenomena that occur in the Universe. The physical content of the Universe — dense or rarefied, hot or cold, stable or unstable — can be classified into categories, such as planets, stars, galaxies, and so on. The information received by observers and transformed into signals is the basis for these classifications, for the physical models and for the predictions, which together make up the science of astrophysics.
KeywordsDust Convection Europe Helium Titan
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