• 0 Posts
  • 47 Comments
Joined 2 年前
cake
Cake day: 2023年9月28日

help-circle














  • Veticia@lemmy.mltoCurated Tumblr@sh.itjust.worksOxygen
    link
    fedilink
    English
    arrow-up
    8
    ·
    2 年前

    It’s hard to compare to exoplanets as we barely even know their sizes let alone densities. But in our solar system earth is the densest of 5.5g/cm3. Close are only Mercury 5.4 and Venus 5.2. Then you have Mars 3.9, Io 3.5, Moon 3.3, Europa 3.0, Triton 2.0, Ganymede 1.9, Pluto 1.9, Callysto 1.8…

    Is not a big sample size, but I’d still assume that such dense planets (high gravity for their size) as Earth are not very common.


  • Veticia@lemmy.mltoCurated Tumblr@sh.itjust.worksOxygen
    link
    fedilink
    English
    arrow-up
    18
    ·
    edit-2
    2 年前

    Human planet also has an unusual core made of iron which creates a crushing gravity. Gravity is actually so strong that even the gas that sorrounds the planet pushes on everything with a pressure of over 10 tons / m2. And when weather makes the pressure slightly less severe humans are like “I don’t feel so good, the atmosphere is not crushing me nearly enough”.