Mars Exploration Said to Get More Efficient

The Mars Advanced Radar for Subsurface and Ionospheric Sounding (MARSIS) instrument 

European Space Agency's (ESA) Mars Express spacecraft is set to get a major software upgrade

The Mars Express was ESA's first mission to Mars, launched on June 2, 2003

it has been equipped with the MARSIS instrument that had discovered signs of liquid water

the MARSIS sends low-frequency radio waves toward the planet using a 40-metre-long 

While most of these waves get reflected back from the surface of Mars, some manage to penetrate

The reflected signals are then studied by scientists who are able to map the structure

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