Krutye utesy na Marse
1.07.2007 | Astronomicheskaya kartinka dnya

U severnogo polyusa Marsa na 2 km v vysotu tyanutsya vertikal'nye utesy. Krasnye oblasti na snimke marsianskoi severnoi polyarnoi shapki – eto skalisto-peschanye uchastki poverhnosti, belye – uchastki, pokrytye l'dom. Sostav temnyh oblastei poka neizvesten, no predpolagaetsya, chto on vklyuchaet v sebya vulkanicheskii pepel.