Dust devils spotted on Mars

Dust devils spotted on Mars (NASA/CNN)

NASA's 'Curiosity' Mars rover has recently spotted several dust devils swirling around parts of the planet.

The rover has been investigating the whirlwinds on Mount Sharp's sand dunes-checking how far the winds move the grains of sand.

The dust devils are a result of sunshine warming the ground -- that prompt the air to rise.

Scientists say wind on the Red Planet has been carving the mountains and shaping the landscape for billions of years.

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