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The astrological symbol for the planet became one of the alchemical symbols for the metal, and Mercury became an alternative name for the metal. Mercury is the only metal for which the alchemical planetary name survives, as it was decided it was preferable to quicksilver as a chemical name. [29] [30]
Mercury is one of four terrestrial planets in the Solar System, which means it is a rocky body like Earth. It is the smallest planet in the Solar System, with an equatorial radius of 2,439.7 kilometres (1,516.0 mi). [4] Mercury is also smaller—albeit more massive—than the largest natural satellites in the Solar System, Ganymede and Titan.
Historically, a second obstacle has been that Mercury's period of rotation is a slow 58 Earth days, [13] so that spacecraft flybys are restricted to viewing only a single illuminated hemisphere. Unfortunately, even though Mariner 10 space probe flew past Mercury three times during 1974 and 1975, it observed the same area during each pass.
Looking good, Mercury! NASA produced stunning new images this week one of Earth's closest planetary neighbors, that might be just a little reminiscent of a '60s-era poster The pics came courtesy ...
Several of the CPK colors refer mnemonically to colors of the pure elements or notable compound. For example, hydrogen is a colorless gas, carbon as charcoal, graphite or coke is black, sulfur powder is yellow, chlorine is a greenish gas, bromine is a dark red liquid, iodine in ether is violet, amorphous phosphorus is red, rust is dark orange-red, etc.
Mercury retrograde starts Wednesday, ... So, if you feel like calling up an old flame or lurking around an ex’s social media pages, then so be it. Don’t be shy to say, “hi,” if you want to
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Experts also have theories as to why Mercury in retrograde has so many people in its grips. According to Simon Rego, chief of psychology at Montefiore Medical Center and professor of psychiatry ...