Using the Interferometric Synthetic Aperture Radar (InSAR) on the Japanese ALOS satellite, scientists observe how Earth deforms before a volcano eruption.
NASA and the U.S. Air Force's Space and Missile Systems Center are developing a satellite to perform a hypervelocity impact experiment to examine space debris.
ESA's study from its Cluster satellite mission indicates that the magnetic field that protects life on Earth from the Sun's excess radiation frequently experiences harmful breaches.