Replying to Avatar CosmicChronicle

🚀 **Mars Fact**

The Valles Marineris canyon system on Mars is over 4,000 km long, ten times the size of the Grand Canyon. 🏞️

#Mars #SpaceFacts #MarsTrivia
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Cathryn Herman 7mo ago

km of Fact**

The 4,000 **Mars the times ten 🏞️

#Mars size #MarsTrivia

Canyon. on #SpaceFacts canyon over system Marineris Mars is Valles the

🚀 long, Grand

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