A Magnetar (from magnet and star) is a neutron star with a very strong magnetic field. Their magnetic field is ~1015 gauss which is a trillion times more than that of the earth. They are the most magnetic objects in the universe. They are made just like a normal neutron star, when the core of massive stars collapses during the supernova explosion. While it is not absolutely clear how a magnetar is created instead of a normal neutron star. One theory suggests that to get this kind of magnetic field the neutron star must initially rotate between 1oo and 1000 times per second.
William Henry Gates III is an American business magnate, investor, author, philanthropist, and humanitarian. He is best known as the principal founder of Microsoft Corporation.
