The launch of Nasa's latest mission to Mars has been delayed by 24 hours.The Phoenix spacecraft was to have launched on Friday, but lift-off has now been rescheduled.
Severe weather on Tuesday around the launch pad at Cape Canaveral, Florida, prevented engineers from fuelling the second stage of the rocket.
Phoenix will land on Mars' northern polar region to analyse samples of soil and ice and to search for signs of past and present life.
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