화성에 부는 '먼지 도깨비'(dust devil)바람 A simplified sketch of dust devil formation. Credit: NASA A Martian dust devil spins across Gusev Crater just before noon on March 15, 2005. Photo credit: Mars rover Spirit Dust devil tracks, photographed from orbit by Mars Global Surveyor on Oct. 14, 2004. Credit: NASA ▲ 화성에 부는 '먼지 도깨비'(dust devil)바람, 미국 항공..