why is it so?
Due to the effect of the iron oxide prevalent on Mars's surface, which gives it a reddish appearance.
Mars
 The latter refers to the effect of the iron oxide prevalent on Mars's surface, which gives it a reddish appearance 
what is an electron? The electron is a subatomic particle. where can they be applied? In electronics, welding, cathode ray tubes, electron microscopes. any scientists who were involved in the research of it? Richard Laming. did he name it? No, but George Johnstone. what are his other research works? He made significant contributions to cosmic physics and to the theory of gases and estimated the number of molecules in a cubic millimetre of gas. what was his profession? He was professor of physics at Queen's College Galway. how was he honored for his scientific contributions? Craters on Mars and the Moon are named in his honour. what is the planet otherwise called as? Red Planet.
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Mars [SEP] Introduction
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, being larger than only Mercury. In English, Mars carries the name of the Roman god of war and is often referred to as the "Red Planet". The latter refers to the effect of the iron oxide prevalent on Mars's surface, which gives it a reddish appearance distinctive among the astronomical bodies visible to the naked eye. Mars is a terrestrial planet with a thin atmosphere, with surface features reminiscent of the impact craters of the Moon and the valleys, deserts and polar ice caps of Earth.