Comments by "Adam Redwine" (@adamredwine774) on "The Best Earth-like Exoplanet Has 4 Major Problems" video.

  1. The question of gravity on a super earth is actually a bit more complicated. The strength of gravity depends on density of mass, not just the amount of it. A planet could potentially be much larger than earth but have similar or even lower gravity at the surface if it was super rich in aluminum and silicates. A smaller planet with a much higher concentration of heavy metals in the core could have higher gravity at the surface. Remember that gravitational force falls off as the inverse square of the distance and on a larger planet you are further from the center.
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