The Smooth Spheres of Gravity Probe B . ... Credit Copyright: Gravity Probe B Team, Stanford , NASA Explanation: Does gravity have a magnetic counterpart? Spin any electric charge and you get a magnetic field. ... Better understanding space, time, and gravity can have untold long term benefits as well as likely shorter term benefits such as better clocks and global positioning trackers. ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ...