KSP System Timeline

KERBOL OF THE PAST

Moho: Volcanic, smoother, has volcanism and a resulting heated atmosphere

Eve: Cooler. Liquid water seas, little ice caps, and patches of gray material which will one day become the gallium seas. Blue atmosphere.

Gilly: A main belt asteroid.

Kerbin: Taller mountains, some volcanism, slightly greener ocean, brown land surface (no life yet).

Mun: Closer, less craters.

Minmus: Bigger, darker. Short period comet.

Duna: Has oceans, thicker atmosphere.

Ike: Pretty much the same, but a tad lighter.

Dres: Fewer craters.

Jool: Brown instead of green.

Laythe: Drier, more violently volcanic.

Vall: Flatter, lighter.

Tylo: More eccentric, distant orbit. Browner, less ices on the surface. Fewer craters.

Bop: Near-Jool asteroid

Pol: Near-Jool asteroid

Eeloo: Orbiting Jool above Vall, below Tylo.

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KERBOL OF THE PRESENT: Revamped Stock Solar System, or the Stock Solar System.

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KERBOL OF THE FUTURE:

Kerbals have made their mark on the Kerbolar system over the past few thousand years.

Moho: Tidally locked, habitable on the terminator.

Eve: Terraformed.

Gilly: Eaten/mined away to something much smaller.

Kerbin: Desert and Savannah terraformed, ice caps slightly larger.

Mun: Terraformed

Minmus: Partially melted, with resulting outgassing atmosphere.

Duna: Terraformed

Ike: Terraformed

Dres: Partially melted, given an atmosphere.

Jool: Stellaratored into a red-hot brown dwarf

Laythe: Hotter, more humid atmosphere. Beginning of terraforming process.

Vall: Partially melted. Attempt no landings there.

Tylo: Melted ice,

Bop: Kraken covered in dirt.

Pol: Mined out.

Eeloo: Same as present.

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KERBOL: AFTERMATH

After Kerbalkind has a technological collapse, the system begins to fall apart again.

Moho: Same as Future

Eve: Mostly deserts, with a humid atmosphere and only lakes remain.

Gilly: Same as Future.

Kerbin: Former Desert-turned-rainforest is now a savannah.

Mun: Nearly airless. Frozen oceans, dead trees.

Minmus: Refrozen

Duna: Dying planet, thinner atmosphere, covered in deserts.

Ike: See Mun.

Dres: Refrozen, flat plains of bright white ice. Atmosphere escaped.

Jool: Still relatively warm, but no longer generating any energy.

Laythe: Drier surface, more humid atmosphere, ice caps, and more land mass. Populated by plant life, mostly just moss.

Vall: Big Duna-style Ice caps.

Tylo: Refrozen.

Bop and Pol are unchanged.

Eeloo is unchanged.

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KERBOL OF THE FAR FUTURE

ALL ORBITS: Slightly different, slightly higher.

Sun: Leaving the main sequence. Hotter, angrier.

Moho: Smacked into Eve.

Eve: Largely molten, totally unrecognizable continents. No atmosphere.

Gilly: Near-Kerbin Object.

Kerbin: Rendered nearly uninhabitable by the growing sun.

Mun: Frozen oceans evaporated, More craters.

Minmus: Smaller, evaporating.

Duna: Ice caps have melted into an ocean. Remaining life from the Kerbal-made terraformation grows back to repopulate the planet. Kerbal trees grow.

Ike: See Mun.

Dres: See Mun.

Jool: Brown gas giant again. Hints of greenery at the equator as Jool begins to enter the habitable zone.

Laythe: Bigger ice caps.

Vall: Refrozen.

Tylo: Same as Aftermath, but more craters.

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KERBOL: Done

Sun: The Sun has been renamed the Dun because it's Dun being in the main sequence. It's not a Red Giant.

Eve: Eaten by the Dun. No longer a thing.

Kerbin: Scorched to a near-unrecognizable ball of lava, along with Mun.

Minmus: Evaporated away to nothing.

Duna: Scorched to a dry, dull, desert planet.

Ike: Darker, more craters.

Dres: Darker, ice evaporating.

Jool: No longer in the habitable zone, now a dark blue cloudless hydrogen giant with a tint of green in the air.

Laythe: Venus/Fat-Io. Thick runaway greenhouse steam atmosphere.

Vall: Evaporating, thick water vapor atmosphere. Melted on the surface, supports underwater life, just barely. Kicked out of Jool system by Laythe and Tylo, now in an eccentric, higher orbit.

Tylo: Dry, brown, rocky. Water vapor atmosphere. KSC is here, but it's not doing well.

Eeloo: Same as Vall.

Savior: A hypervelocity red dwarf star that will pass through the Kerbol system, potentially wreaking havoc with its remaining planets. The planets around the star itself are tightly bound to the star and will not suffer the consequences. A possible goal of this mod would be to start from career mode and colonize one of the red dwarf's planets during its pass through the system. Its inner three planets are in a 1:2:4 laplace resonance.

-Eyoo: A fat Io type planet.

-Yurops: A warm/hot tidally-locked ocean planet with a frozen ice cap on the back.

-Giddymin: A superkerbin planet in the habitable zone. Largely rocky and deserted, with some oceans. It is mildly eccentric in its orbit and as a result has a 3:2 spin-lock instead of a 1:1 tide-lock.

-Callto: Cold rocky planet with cryovolcanoes.