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by Chris Wayan, 2002-2010

Planetocopia is a group of model worlds supporting intelligent life. They fall into four series: Tilt! (Earth with different poles), Futures (set 1000 years from now), the Biosphere Variations (diverse experiments in planetology), and Caprices (whimsically altered Earths). Behind-the-scenes pages include the new Planetocopia interview, Carpentry Tips for World-Builders (how I make 'em), The Heart Hath Its Reasons (why I make 'em), Tech Corner (a chart comparing 'em), World-Builders (influences: others who make 'em). Here's a group snapshot of the Planetocopia family, all to scale. Click for tours!

Photomontage by Wayan of 19 hypothetical planets and moons from space, ranging from 5000 to 30,000 km across.
Set 1: TILT!

Alternate Earths that evolved with our geography, only tilted. Shift the axis, and you shift climates, sea levels... and evolution.
a warm, flooded world
a steady-state ice age
the world on its head
a world testing the theories in Jared
Diamond's Guns, Germs and Steel

Set 2: Futures

Three worlds on the same day 1000 years from now--all of them profoundly transformed:
Earth has doubled CO2,
thawed poles, flooded coasts
Terraformed, but
emphatically not Terra
the ugly duckling
becomes a swan

Set 3: The Biosphere Variations

Inhabited worlds so unEarthlike that most exobiologists would write them off--prematurely. Not all are even planets--the second row are moons.

Cross Earth with Mars--
How low can you go?
Not a hot Jupiter, but...
a tepid Neptune?
Earthlike by the numbers
but Australian bad luck!
orbital photo of Serrana orbital photo of Lyr orbital photo of Kakalea

a huge Earthlike moon
of a hot gas giant
a living Marslike moon
with just 0.2% of Earth's water
a giant Europa
walking on thin ice
orbital photo of Pegasia orbital photo of Tharn orbital photo of Oisin

Biosphere Variations under construction:

Set 4: Caprices

This new set of worlds in progress is a ragbag of whims: poor old Earth with just a few tiny changes...
Earth with most of the ocean siphoned
off, leaving just shallow seas on the
abyssal plains 4-5 km below our coasts.
It's a wild, steamy topography down there,
while the old continents turn alpine...
85% done--sparse portraits & landscapes
Up is down and down is up!
Land is sea, sea land;
trenches are peaks, peaks trenches,
islands and reefs are lakes,
lakes are reefs and islands...
30% done--first tour!: Arctica
start with Inversia's inside-out geology--
now pour on as much water as Earth has.
Miles-deep seas, with tiny continents
where our abysses and trenches lay.
Unrecognizable, yet weirdly familiar...
Completed 2017

More planetology, climatology and terraforming: A relief model of Io, Jupiter's volcanic moon

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