A view from Space: using satellites to manage water

by Mcebisi Mkhwanazi For decades, satellite imagery has been used for environmental monitoring, with water management being one of the areas of application. For example, many are familiar with the Landsat images showing Lake Chad in Africa shrinking over the years. Now satellites are used for more than just providing visual images. This paper discusses…

Plasmas: Beyond your TV screen and into space

by Carmen Guerra García Plasmas are known as the fourth state of matter, the first three states being gases, liquids and solids. Whereas everyone can distinguish the first three states, plasmas are in general less known to most people, even though most of the known universe is made of plasmas! Plasmas are similar to gases…

Exoplanets today: When reality surpasses fiction

by Eduardo Bendek. The existence of planets outside of our solar system, or exoplanets, has been envisioned since early times. In fact, the Greek philosopher Epicurus proposed the idea for the first time on one of his letters to Herodotus 300 B.C. He said, “There are an infinite number of worlds, some like this world,…