Planetary Evolution Timeline; From Jupiter to Earth
4.5 billion years ago: ‘Great Red Spot’
0.5 to present: Earth
[- = condense] [+ = expand] [x = multiply by previous diameter]
Great Red Spot is currently condensing, eventually a massive upheaval unleashes the embryonic body out into the Universe from the Jovian atmosphere: Io -1.18x Europa +1.7x Ganymede -1.09x Callisto +1.07x Titan -1.9x *Triton +2.5x Mars +1.87x Earth -1.05x Venus -2.48x Mercury
Orbital Velocity (km/s)
[Mars 24.1 — Earth 29.8 — Venus 35.0 — Mercury 47.9]
Indicating as an inner planet’s orbit approaches the Sun, its orbital velocity increases.
Inner Planets Correlation of Orbital Period to Diameter
The orbital period of Mars is 686.98 days, divide that by Earth’s orbital period of 365.25 days and the ratio is 1.88. Compare this to the radius of Earth to Mars:
Equatorial radius (km); Earth 6,378.1/Mars 3,396.2 = 1.87 and Polar radius (km); Earth 6,356.8/Mars 3,376.2 = 1.88
There is an undeniable precise correlation of those planets orbital period to their size. This holds true but not as exact in relation to Venus with Mercury:
Orbital period; Venus 224.7/Mercury 87.9 = 2.55 and Radius(km); Venus 6,051.8/Mercury 2,439.7 = 2.48
In conclusion these ratios indicate that as Mars’ orbit approaches the habitable zone and its core strongly activates that planet will expand while its sea floor spreads until it’s our size. As Venus approaches the Sun that dead world will continue to deteriorate and become like Mercury and so forth until it inevitably burns away into the Sun’s corona.
This same principle does not apply with Earth in relation to Venus which I suggest indicates that Earth is currently locked inside the habitable zone.
(Values for orbital periods, orbital velocity, and radius from nssdc.gsfc.nasa.gov)