Something incredibly strange is happening in our cosmic neighborhood: a mysterious gravitational disturbance is hurtling Jupiter toward the Sun. If it sounds like science fiction, that’s ...

Scientists said Thursday that they had spotted an unusually large and light planet orbiting a distant star -- a discovery that could force them to reexamine theories about how planets are formed.

Scientists have found an “alien world” that is almost 10 times bigger than Jupiter, ... “The planet-to-star mass ratio of 0.10–0.17 per cent is similar to the Jupiter–Sun ratio, ...

Jupiter's mass is over two times bigger than the masses of all the other planets combined. Jupiter is so big that its center of gravity is actually above the sun's surface. As a result, Jupiter ...

Sol is just so much larger than Earth, Venus, Mercury, or even Saturn that their centers of mass with the sun all lie deep within the star itself. Not so with Jupiter.

Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact.

Jupiter does not orbit around the sun. It is so big, so massive, that it orbits a different center of gravity or barycenter, than all the other planets in our solar system.

For a puny, fragile planet like Earth, which is 0.000003 the mass of the sun, the center of gravity resides so close to the center of the sun that we don't even notice the slightly off-kilter orbit.