The appeal of Mars

MOSCOW. (Yuri Zaitsev for RIA Novosti) – No one doubts that humans will one day fly to Mars. The flight will last 350 days, 20 to 30 days will be spent on the Martian surface and the return journey will take another 350 days. But the exact date remains unknown.

RIA Novosti // Nov. 01, 2007 - 14:12 GMT