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.
Jupiterâs moons are often split into three specific groups: 1  Inner moons These are the moons which orbit closest to Jupiter and they are sometimes known as the Amalthea group. The names of the inner moons of Jupiter are Metis, Adrastea, Amalthea, and Thebe. Galilean moons. The largest four moons of Jupiter â Io, Europa, Ganymede and Callisto â were discovered by Galileo in 1610 and are known as the Galilean moons. They each have a radii larger than any of the dwarf planets and they are some of the largest objects in the solar system outside of the eight planets by mass.