NASA Shares Picture Of Martian Dunes On Odyssey's 20th Anniversary

Celebrating 20 years of Mars Odyssey orbiter, NASA has released an image showing blue and golden dunes on Mars' northern polar caps. Covering 30km area, the photograph's colors are generated by surface temperatures i.e blue for cold and yellowish-orange for warm. The picture was, reportedly, captured from Dec 2002 to Nov 2004 following Odyssey's launch in 2001. Notably, Mars Odyssey orbiter, a robotic spacecraft is the longest-working spacecraft.