when was it done?
On 28 November 1964.
Mars
on 28 November 1964
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. why is it so? Due to the effect of the iron oxide prevalent on Mars's surface, which gives it a reddish appearance. any spacecraft that had visited the planet? Mariner 4 and Viking 1. who launched the former? NASA.
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Mars [SEP] Introduction
Mars has been explored by several uncrewed spacecraft. "Mariner 4" was the first spacecraft to visit Mars; launched by NASA on 28 November 1964, it made its closest approach to the planet on 15 July 1965. "Mariner 4" detected the weak Martian radiation belt, measured at about 0.1% that of Earth, and captured the first images of another planet from deep space. The Soviet "Mars 3" mission included a lander, which achieved a soft landing in December 1971; however, contact was lost seconds after touchdown. On 20 July 1976, "Viking 1" performed the first successful landing on the Martian surface.