#269【悲報】Zannen na Wakusei
This time, we will funly unravel the slightly unfortunate points of the planets existing in the solar system, which textbooks do not teach. Surprising facts that contradict the image received from their names pop up one after another.
The history of Neptune being demoted to a dwarf planet is discussed.
Discovered in 1930 by American Tombaugh, Neptune was the only pride-worthy planet for Americans. However, due to the definition change by the International Astronomical Union in 2006, its ranking changed, and it was demoted to a dwarf planet. The personalities cannot help but smile bitterly at the sad history behind its former glory.
It is the fact that Mercury is smaller than large satellites.
While the diameter of the Earth is 12,700 kilometers, Mercury is only about 4,800 kilometers. It is surprising to hear that it is smaller than Jupiter's satellite Ganymede, which is 5,200 kilometers, and Saturn's Titan. An episode is revealed that although it has the name water in Japanese, it is actually a lump of rock full of craters. Please listen to the main episode for the rest.
* This summary is generated automatically by AI and may contain errors.
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