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Results of seismological tests indicating that a piece of upper mantle that was missing for about 15 million years could have contributed to the great height of the Tibetan Plateau are presented.

The LightSAR (surface aperture radar) is an earth-imaging radar satellite that was proposed by NASA to monitor crustal deformation and geological events. The satellite will utilize SAR interferometry which was developed by Howard Zebker and his team at the Jet Propulsion Laboratory. SAR interferometry can detect crustal deformation under extreme weather conditions and produce three-dimensional images of the earth's crust. Furthermore, the SAR-imaging satellite will be utilized to monitor earthquakes, volcanic eruptions, forest growth and tectonic plate movement.