This vast canyon system stretches across Mars near its equator.

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Your new ahaValles Marineris

Its formation involved crustal stretching, with later erosion and collapse. Source: Valles Marineris ↗

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23Mercury · position among the eight planets, counting outward from the SunRECALL
1
The smallest planet and the fastest to orbit the Sun
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24Venus · position among the eight planets, counting outward from the SunRECALL
2
The hottest planet because of its thick greenhouse atmosphere
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25Earth · position among the eight planets, counting outward from the SunRECALL
3
The only known world with liquid surface oceans
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