Times LIVE | NASA mission to figure out how Earth's magnetic bubble pops Times LIVE Changes in Earth's magnetic field from January to June 2014 as measured by the Swarm constellation of satellites. These changes are based on the magnetic signals that stem from Earth's core. Shades of red represent areas of strengthening, while blues … NASA to launch magnetic field probes Nasa Mission to Measure Earth's Magnetic Collisions NASA's Magnetospheric Multiscale Launch Set Thursday |