Alternate Planets, Suns, Stars, and Solar Systems Thread

View of the first probe sent around our binary companion, Ares (Mars). If mars was our moon instead of the moon
Mars-sized planet would have a denser atmosphere and a liquid hydrosphere in the Earth’s orbit. Also, since this is a satellite of the Earth, tidal heating of the core would cause geological activity.
 
Mars-sized planet would have a denser atmosphere and a liquid hydrosphere in the Earth’s orbit. Also, since this is a satellite of the Earth, tidal heating of the core would cause geological activity.
Ah, but what if Mars didn't want to? Planets can be very willful, you know. :p
 
Mars-sized planet would have a denser atmosphere and a liquid hydrosphere in the Earth’s orbit. Also, since this is a satellite of the Earth, tidal heating of the core would cause geological activity.
Maybe it does, but it looks good.
 
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