Are Uranus And Neptune Really Ice Giants?

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A composite image of Uranus (left) and Neptune from Hubble Space Telescope observations (Credit: NASA.gov)

Uranus and Neptune are often called "ice giants." This is based on the theory that they were made from materials that easily freeze in space, like water and ammonia. However, this label does not come from direct observations, since no spacecraft has visited the two giants since Voyager 2 in the 1980s. Instead, it is drawn from computer models built using the planets’ sizes, masses, densities, and gravity fields. Now, a new study by scientists at the University of Zurich is challenging this idea. It suggests that the two planets may contain more rock than ice.

댓글 37개
  • teddybearlife
    teddybearlife약 2달
    I like the article
    • mewybybylome
      mewybybylome약 2달
      James says: "I wondered if they could send another telescope so they could get some pictures of both planets and send out tiny probes to get more samples?" Grandma says: "It is interesting how "facts" change as science gains more information through research and study."
    • i_love_god
      i_love_god약 2달
      I think they are the Ice giants because they are the farthest plants away from the sun! :)
      • lisekytebysa
        lisekytebysa약 1달
        but what if there is more rock then ice
        • vinrong
          vinrong약 2달
          Pluto is the smallest,farthest,and a dwarf plants away from the sun
        • imflamey
          imflamey약 2달
          Or it was a rock plant and then the ice melted and it’s rock now and it all water
          • ilovehenrydsaf
            ilovehenrydsaf약 2달
            I doubt it. How would it melt if its so far away from the sun? If winter on earth freezes water due to the sun shining ever so slightly less, how would the ice melt that far away?
          • tony67
            tony67약 2달
            That is smart
          • peacey_bon-bon
            peacey_bon-bon약 2달
            cool!
            • s0ccerbeast2013
              s0ccerbeast2013약 2달
              I feel like they are made from rock and ice. So 1 that can be very dangerous 😱
              • sophia0313
                sophia0313약 2달
                We never been to Uranus and Neptune,so it's obvious researchers wonder about it.
              • anne0327
                anne0327약 2달
                WOW soooo cool
                • chocolaterose75
                  chocolaterose75약 2달
                  What if they aren't really ice giants? If they are not, schools really messed up the teachings of the solar system for my generation.
                  • qwertyasd333
                    qwertyasd333약 2달
                    wow