It is well known for the Good Housekeeping Seal, popularly known as the Good Housekeeping Seal of Approval.. The magazine was founded May 2, 1885 by Clark W. Bryan in Holyoke, Massachusetts. The magazine achieved a circulation of 300,000 by 1911, at which time it was bought by the Hearst Corporation.
Gravity, Forces, magnetism. Jupiter's moons stay in orbit because gravity pulls them towards Jupiter. it mainly happens like a game of tug of war. Two forces are included, one pulls the moons towards Jupiter, the other one pulls them towards space.
Orbit: 1,070,400 km from Jupiter. Ganymede is the largest moon in the Solar System and the seventh moon and third satellite outwards from Jupiter. There are known to be 67 moons orbiting around Jupiter. The four largest moons are Ganymede, Io, Europa and Callisto, all of which were discovered by Galileo.