Luna 4 billion years ago scaled one in twenty million

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This is an hypothetical repressentation of how could look the Moon during or shortly before the Late Heavy Bombardment. It was ploted using MATLAB R2016a on a gravity map of the GRAIL mission. While higher the gravity on the surface, higher the density behind it. This allows to shown the giant impact craters buried by the lava flows that formed the dark lunar maria. Although this, some craters may be formed after the Late Heavy Bombardment. During a relatively short period of time, late in terms of the formation of the Solar System, all the bodies were striked by asteroids, between 4.1 and 3.8 billion years ago (thousand of million in the long scale). The Nice model argue that the migration of the orbits of Uranus and Neptune caused the instability of the early Kuiper Belt, scattering smaller bodies inward, triggering a shower of asteroids on every body in the Solar System, including Earth. That's why every atmosphere-less object is heavily cratered, like Mercury, Vesta, Ceres, or Callisto. Bodies with adense atmosphere, like Venus, Titan, the Earth, and gas giants, remain relatively unaffected, and their craters were eroded. Other bodies, like Mars, Ganymede, Titania, Triton and Pluto, were partially resurfaced because of geologic activity. The file's names explained: name_1_x_10_y.stl is 1 : x * 10y. So _1_6_10_7 is 1:600000000 or one in 60 million. References GRAIL Primary Mission Gravity MapsSurf to STL function for MATLAB Other astronomical objects Object Scale [1:x] K = 103 (thousand)M = 106 (million)G = 109 (billion) Image Inner Solar System Mercury 20M, 60M, 120M Venus 60M, 120M, 250M Earth 60M, 120M, 250M Luna 10M, 20M, 60M Mars 20M, 60M, 120M Phobos and Deimos 200K, 500K Artificial Salyut 7 40, 48, 80, 160 Near Earth Asteroids Moshup and Squannit 8K, 20K, 40K Ra-Shalom 20K, 40K Castalia 8K, 20K, 40K Bacchus 8K, 20K Bennu 3K, 8K Ryugu 3K, 8K, 20K Geographos 40K, 80K Phaethon 40K, 80K Itokawa 3K, 8K Eros 80K, 200K, 500K Nereus 3K, 8K Mithra 20K, 40K Golevka 8K Toutatis 40K, 80K Main Asteroid Belt Gaspra 200K Annefrank 40K, 80K Braille 20K, 40K Vesta 2M, 4M, 10M Šteins 40K, 80K, 200K Iris 2M, 4M Hebe 1M, 2M, 4M Lutetia 500K, 1M, 2M Julia 1M, 2M, 4M Mathilde 500K, 1M Juno 2M, 4M Ceres 4M, 10M Pallas 4M, 10M Kleopatra 2M, <a href="/tato