How does the mass of Jupiter compare with that of the other planets?
It is twice as massive as all other planets combined.
How does the density of Jupiter compare to the terrestrial planets?
Its density is less than any terrestrial.
How was the rotation rate of Jupiter's core determined?
by radio observations of Jupiter's rapidly spinning magnetosphere
What is the probable source of the day-to-day variations in Jupiter's belts and zones?
differential rotation and the underlying zonal flow
The reason the jovian planets lost very little of their original atmosphere is due to their
How does the heat Jupiter radiates compare to the energy it receives from the Sun?
Jupiter radiates back into space about twice the energy it gets from the Sun.
What is the source of Jupiter's excess energy?
the slow escape of gravitational energy released during the planet's formation
How does the magnetic tilt of Jupiter compare with our field?
Both are tilted about 10 degrees, but Jupiter is opposite in polarity.
Which of the jovian moons is the largest and also the largest moon in the solar system, even bigger than Mercury?
Where is Jupiter's ring located?
above Jupiter's cloud tops and inside the orbit of its inner-most moon
What is the source of Jupiter's intense radio waves and magnetism?
liquid metallic hydrogen swirling in the rapidly spinning mantle
What is the space probe that is currently oribing Saturn and is responisble for numerous discoveries of storms and weather patterns in Saturn's atmosphere called?
Saturn's bands, oval storm systems, and turbulent flow patterns are powered by:
convective motion and rapid rotation.
Why does the atmosphere of Saturn appear to have only half the helium content of Jupiter?
Much of Saturn's helium has differentiated towards its center.
Why does Saturn radiate even more excess energy than Jupiter?
Helium rain gives off heat as it differentiates toward Saturn's center.
What did the Voyager mission discover about the main rings of Saturn?
They are composed of tens of thousands of narrow ringlets.
The reason the rings of Saturn exist is because:
the ring material lies within the Roche limit of Saturn.
The Roche limit is the point at which
the external tidal forces on an object become greater than the internal forces that hold it together.
If satellite A is in a 2:1 resonance with satellite B, this means that
the orbit of satellite B takes twice as long to complete as that of satellite A.
Titan is an interesting moon because:
it has a rich atmosphere that may resemble that of the early Earth.
Why was it thought that Titan may have oceans of methane?
The atmospheric pressure at Titan's surface and its surface temperature are such that methane should be liquid on Titan's surface.