When surrounded by a transparant emission regionn, black holes are expected to reveal a dark shad...
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We present the first Event Horizon Telescope (EHT) observations of Sagittarius A* (Sgr A*), the G...
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The European drought of 1921 is assessed in terms of its impacts on society and in terms of its p...
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Knowledge of the spatio-temporal changes in the characteristics and distribution of subsurface fl...
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