Dwarf Planets: Miniature in size, large in number
After the Pluto “planet or not” debacle a few years back, the celestial mass that had once claimed a spot as the ninth planet in our solar system was reclassified as a dwarf planet. Before planets were classified as dwarf planets, many astronomers attempted to classify every planet they discovered as a main planet. Had that system stuck, students would have well over twenty planets to remember today.
Jupiter’s Vast Ocean Of Hydrogen
While scientists cannot say with absolute certainly what lies beyond Jupiter’s stormy exterior, they have a pretty good idea of what is within it. Given the nature of the planet’s composition, many scientists speculate that a massive sea of liquid hydrogen covers the entire surface of Jupiter. This hydrogen sea would be nearly 25,000 miles deep and may contain elements so rare that they have not been seen in our solar system since its very formation.