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A second delay in Phoenix’s schedules appeared yesterday due
to a glitch in orbiting Odyssey satellite’s operations system. The spacecraft was
supposed to receive the commands from Earth and then send them on to the red
planet. Apparently, the malfunction which led the system to a safe mode state,
was probably caused by a series of energy particles from space, which interrupted
the memory of the satellite’s computer.
During its safe mode, the spacecraft inactivates all
non-essential operations and awaits new instructions from Earth.
The first problem that the scientists had to deal with
appeared two days after the landing, when another satellite, the Mars Reconnaissance
Orbiter, turned off its radio and was unable to receive information and send
commands or images.
According to the engineers in charge, the Odyssey will
remain offline until Saturday.
Due to the present situation, the plans for the Lander’s
digging mission will be postponed and the Phoenix will carry on with a sequence
of pre-programmed operations which were stored in its memory before leaving
Earth.
After the safe mode will be turned off, the Phoenix will use
its robotic arm to scoop the land in several locations, in order to gather
material for several tests. The samples will be placed in a small oven where by
using heat will be able to determine the soil’s composition and whether there
are any traces of organic compounds.
"We're just taking an exploratory step here," said
chief scientist Peter Smith of the University of Arizona, Tucson, who heads the
three-month, $420 million mission, according to the Associated Press. "Our
instruments are not designed to decode DNA molecules. ... We're looking for the
basic ingredients that would allow life to prosper in this environment."
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