The Jovian Planets. Huge worlds, heavily mantled in gas at the time of the formation of the Solar System.
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1 1 The Jovian Planets Huge worlds, heavily mantled in gas at the time of the formation of the Solar System.
2 2 The Galilean Satellites Jupiter has four planetary-sized moons first seen by Galileo and easily visible in binoculars.
3 3 The Galilean Satellites Jupiter has four planetary-sized moons first seen by Galileo and easily visible in binoculars.
4 4 Io and Geological Activity Io, being similar in size to the Earth's Moon, might be expected to be a geologically dead world.
5 5 Io and Geological Activity It turns out to be the most volcanically active world in the Solar System.
6 6 Io and Geological Activity It turns out to be the most volcanically active world in the Solar System. No impact craters! Coloration from Sulfur and sulfur compounds. Density = 3.0 g/cm3 mostly rock formed in a warm location? ices baked away?
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10 10 Io's Atmosphere The volcanic activity produces a continuously escaping tenuous atmosphere of sulfur and sodium near Io, and a torus of this material around Jupiter.
11 11 Heating Io Internally Tidal Stretching Io has an elliptical orbit due to tugs from the other large Galilean satellites. The solid body of Io experiences significant, regular tidal distortion as a result (the orbit takes just under 2 days)
12 12 Heating Io Internally Tidal Stretching The tidal stretching heats the interior of Io significantly, so much so that volcanism is rampant.
13 13 Europa and Tidal Heating Europa is the next Galilean satellite out from Jupiter Craters are rare on Europa as well tidal heating is much weaker greater distance / slower orbit Europa, however has an icy surface easier to melt.
14 14 Europa and Tidal Heating Europa is the next Galilean satellite out from Jupiter Craters are rare on Europa as well tidal heating is much weaker greater distance / slower orbit Europa, however has an icy surface easier to melt.
15 15 Europa and Tidal Heating Europa also has a density close to 3.0 g/cc. The outer layer of ice is the top of a true frozen-over ocean about 100 kilometers deep. Weak tidal heating combined with radioactive decay keep Europa warm enough keep the ocean liquid below a few kilometers of icy crust. Liquid water in the outer solar system!!!
16 16 Europa and Tidal Heating Europa also has a density close to 3.0 g/cc. The outer layer of ice is the top of a true frozen-over ocean about 100 kilometers deep. Weak tidal heating combined with radioactive decay keep Europa warm enough keep the ocean liquid below a few kilometers of icy crust. Liquid water in the outer solar system!!!
17 17 Europa as an Abode for Life Europa's ocean is likely habitable if life formed there. Interestingly, it is now thought that life on Earth may have originated near submerged volcanic vents. The most primitive life forms on Earth thrive in extreme environments e.g. boiling water.
18 18 Europa as an Abode for Life Europa's ocean is likely habitable if life formed there. Interestingly, it is now thought that life on Earth may have originated near submerged volcanic vents. The most primitive life forms on Earth thrive in extreme environments e.g. boiling water.
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20 20 Enceladus Tidal heating again?
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23 23 Composition of the Jovian Planets Jupiter and Saturn attracted so much gas gravitationally during formation that the have a composition that largely matches the Sun Mostly hydrogen, some helium, and a a tiny fraction of the other elements.
24 24 Composition of the Jovian Planets Jupiter and Saturn attracted so much gas gravitationally during formation that the have a composition that largely matches the Sun Mostly hydrogen, some helium, and a a tiny fraction of the other elements. - Uranus and Neptune are also dominate by Hydrogen and Helium, but not to the degree that Jupiter and Saturn are. - The significant portion of their mass likely made up by water leads to Uranus and Neptune being called ice giants
25 25 The Galilean Satellites Jupiter has four planetary-sized moons first seen by Galileo and easily visible in binoculars.
The Galilean Satellites. Jupiter has four planetary-sized moons first seen by Galileo and easily visible in binoculars.
1 The Galilean Satellites Jupiter has four planetary-sized moons first seen by Galileo and easily visible in binoculars. 2 The Galilean Satellites Jupiter has four planetary-sized moons first seen by Galileo
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