Mars has the blues in stunning NASA image of sand dunes on the red planet - CNET

NASA celebrates the Mars Odyssey spacecraft's 20 years in space with a striking view of sculpted dunes.

This false-color Mars Odyssey image shows cooler temperatures in blue.

But the red planet is looking very blue in a Mars Odyssey spacecraft image released by NASA last week that shows a scenic landscape of sand dunes. .

Mars rovers like Perseverance and Curiosity are certainly glamorous, but orbiting spacecraft like Mars Odyssey have been doing the hard work of imaging, mapping and studying the red planet for years.