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Astronaut describes Mars trip as 'one-way' ticket

Former astronaut Buzz Aldrin says technology and life-support aren't enough to sustain a round-trip tour to Mars from a base on the moon.

Former astronaut Edwin "Buzz" Aldrin said that a planetary mission to Mars from a base on the moon will be the equivalent of a "one-way trip to the stars," according to a story this week from the EE Times.

Aldrin, who in 1969 was the second man on the moon, said that current technology and life support systems couldn't sustain a round-trip manned voyage to Mars. That said, Aldrin, 77, still wants to plan the mission, according to the interview.