Aurora on Mars found.

<P> Scientists on the planet in the solar system most of the observed aurora, and in the "Mars Express" before the arrival of Mars, Mars appears to be one exception. ."Mars Express" SPICAM ultraviolet spectrometer has detected an aurora on Mars, reported it with all the other planets have different aurora. .The Martian aurora confined to one point, apparently by "Mars Global Surveyor," the discovery and mapping of the crustal magnetic fields are linked. .This field is now no longer exists an intrinsic magnetic field of ancient residues. .</ P>.