Biosphere
The biosphere, also known as the ecosphere, is the worldwide sum of all ecosystems. Ecosphere is a planetary closed ecological system. In this global ecosystem, the various forms of energy …
Astronomy
Astronomy
Astronomy is defined as the study of the objects that lie beyond our planet Earth and the processes by which these objects interact with one another. But it is much more. …
Spacetime
Spacetime is any mathematical model that fuses the three dimensions of space (length, width, and depth) and the one dimension of time into a single four-dimensional manifold. It represents the “stage” in which …