Jupiter-type planets come in two sizes, and these two types of planets formed in very different ways.
A Jovian Eclipse Reveals Lava Lakes On Io
All it took to verify a lava lake on Io was a fortunate transit by an icy world.
The Cool Spot
Jupiter has a Great Cold Spot in its upper atmosphere, similar to the Great Red Spot.
Jupiter Rising
Jupiter’s polar regions are very different from its equatorial region.
Across The Bow
Recently the Juno probe crossed Jupiter’s bow shock on its way to the planet.
Amateur Astronomers Capture Jupiter Impact
On Monday amateur astronomer John Mckeon captured an unusual flash on the limb of Jupiter while he was filming the planet through a telescope.
How Galileo’s Moons Changed The World
Galileo’s discovery of the moons of Jupiter gave us a “heavenly clock” we could use to map the Earth.
A Matter of Degree
By observing Ganymede’s aurora, we now know Jupiter’s moon has an sub-surface ocean larger than any on Earth.
Radio Jupiter
In the visible spectrum, Jupiter is a bright, star-like point in the night sky. Viewing it with the naked eye, it would be easy to confuse it with a star except for the fact that it doesn’t twinkle. At radio frequencies Jupiter appears very different. It doesn’t have a simple round shape, for example, and it is extraordinarily bright. So bright that it can outshine the Sun at some radio frequencies.
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