How does the amount of cratering vary among the Galilean moons does it depend on their location if so why?
How does cratering vary among the Galilean moons? Does it depend on location, and if so, why? — Io and Europa have almost no craters on their surfaces. This does not depend as much on their location, but rather on crust renewal.
What evidence tells us that the Galilean moons evolved together with Jupiter quizlet?
What evidence tells us that the Galilean moons evolved together with the planet? The fact that all are tidally locked with Jupiter.
Which of the Galilean satellites are geologically active quizlet?
Galilean moons refer to the largest of the moons. Io, Europa, Ganymede, and Callisto. They are all tidally locked. Io is the closest moon to Jupiter and the most geologically active world.
What does this curved feature which contains a point bar indicate about past events on Mars quizlet?
What does this curved feature, which contains a point bar, indicate about past events on Mars? The surface once had running water that eroded and deposited sediment.
How does cratering vary among the Galilean moons?
How does cratering vary among the Galilean moons? Does it depend on location, and if so, why? Less to do with location and more to do with age; outer moons have more cratering because their surfaces are older, the inner moons have undergone volcanic activity which covers their craters.
How does the density of the Galilean moons vary with increasing distance from Jupiter?
Jupiter's four major moons are called the Galilean satellites, after their discoverer, Galileo Galilei. Their densities decrease with increasing distance from the planet.
What evidence is there that Neptune’s moon Triton is geologically active?
What evidence is there that Neptune's moon Triton is geologically active? There are few craters and there are cracks in the ice.
What evidence do we have that Jupiter is primarily composed of hydrogen and helium rather than rock?
What evidence do we have that Jupiter is primarily composed of hydrogen and helium rather than rock? Jupiter has hydrogen and helium lines in its spectrum. The density of Jupiter is 1.3 grams per cubic centimeter. Jupiter's equatorial diameter is about 6% larger than its polar diameter.
Why can the Galilean moons have geological activity?
Io is in a gravitational tug-of-war with Ganymede and Europa that drives the tides that make these moons so geologically active.
Which of the Galilean moons has volcanic activity quizlet?
Io is smaller than Mercury, but it is the most geologically active object in the Solar System, with volcanic eruptions constantly repaving its surface. This image shows a couple of volcanic eruptions as they happen. Of the four large Galilean moons orbiting Jupiter, Io is the closest to the planet.
What causes the phases of the moon quizlet?
The moon's phases are caused by the changing angles of the earth's shadows and reflected sunlight as the moon revolves around the Earth over the course of about 1 month (28 days). An imaginary line where the Earth is tilted. The earth completes one revolution around the sun every 365 days.
Which feature on Earth’s moon is the oldest and consists of heavily cratered feldspar rich igneous rock?
Rocks which were collected from the lunar highlands are igneous rocks consisting of feldspar. They have been dated to be more than 4 billion years old.
Which of the Galilean moons are geologically active?
Three of the moons influence each other in an interesting way. Io is in a gravitational tug-of-war with Ganymede and Europa that drives the tides that make these moons so geologically active.
How did the Galilean moons form?
Like the rest of the Solar System planets, Jupiter formed out of the disc of dust and gas surrounding the young Sun. Once this gas and dust had condensed to form Jupiter, the leftover material coalesced and grew over time to form the Galilean moons.
Which of the Galilean moons is densest and most geologically active?
With over 400 active volcanoes, Io is the most geologically active object in the Solar System. This extreme geologic activity is the result of tidal heating from friction generated within Io's interior as it is pulled between Jupiter and the other Galilean moons—Europa, Ganymede and Callisto.
Why is Jupiter’s moon Io volcanic?
Locked in a perpetual tug of war between the imposing gravity of Jupiter and the smaller, consistent pulls of its neighboring moons, Io's distorted orbit causes it to flex as it swoops around the gas giant. The stretching causes friction and intense heat in Io's interior, sparking massive eruptions across its surface.
What is peculiar about the orbits of Neptune’s moons Triton and Nereid?
What is peculiar about the orbits of Neptune's moons Triton and Nereid? Triton's orbit is in the retrograde direction, and Nereid's orbit is large and very elliptical. The surface age of Triton is thought to be about 100 million years.
Why do you suspect that Triton has a geologically active past quizlet?
Why do you suspect Triton has a geologically active past? Chondrules, small round bits of glassy rock, are contained in chondrite meteorites. The presence indicates chondrite meteorites have never melted since they formed.
Why do the giant planets and their moons have compositions different from those of the terrestrial planets?
Why do the giant planets and their moons have compositions different from those of the terrestrial planets? The high temperatures of the inner solar system did not allow for condensation of the volatile materials found in the outer solar system.
What material makes up most of Jupiter’s volume and why is it not found here?
What material makes up most of Jupiter's volume, and why is it not found here? Liquid metallic hydrogen can be formed only under tremendous pressure, not found even in the Earth's interior, much less on its surface.
Which of the Galilean moons has volcanic activity?
Io — Jupiter's fifth moon — is the most volcanically active body in the solar system.
What is the ultimate source of the energy for all the activity observed on Jupiter’s Galilean satellites?
The ultimate source of this energy is Jupiter's rotation, which is tapped by Io through the tides it raises on Jupiter, and is transferred to Europa and Ganymede by the orbital resonance.
What is the most likely reason for the different levels of geological activity between the Galilean moons?
What is the most likely reason for the different levels of geological activity between the Galilean moons? Moons farther away from Jupiter experience weaker tidal heating.
Why are Jupiter’s Galilean moons geologically active quizlet?
All of Jupiter's moons experience tidal heating from Jupiter, and they show signs of recent geological activity because of it.
What causes the phases of the moons?
Moon phases are determined by the relative positions of the Moon, Earth, and Sun. We see the Moon go through a changing cycle of phases each month due to its orbital motion around Earth and the changing geometry with which we view it.
What are the phases of the moon and why do the different phases occur?
Each month, the Moon goes through its four phases: New Moon, First Quarter, Full Moon and Third Quarter. During Full Moon and New Moon, impressive lunar and solar eclipses can occur. Into the shadow: A lunar eclipse occurs when the Full Moon passes through the central shadow (the umbra) of the Earth.
Which feature on Earth’s Moon is the oldest and consists of heavily cratered feldspar rich igneous rock quizlet?
Explanation. Rocks which were collected from the lunar highlands are igneous rocks consisting of feldspar. They have been dated to be more than 4 billion years old.
How did the relatively smooth regions on the Moon known as the lunar maria form?
Lunar maria or "seas." This is a broad vista encompassing portions of three maria. These relatively smooth areas are younger than most of the lunar surface, having been formed by lava flows after much of the cratering had already occurred.
Why are the Galilean moons geologically active?
Io is in a gravitational tug-of-war with Ganymede and Europa that drives the tides that make these moons so geologically active.
What is the source of Io’s volcanic activity?
Io's volcanism is mainly driven by tidal heating, while Earth's volcanism is driven by internal heat. Aside from this, the volcanic processes are fairly similar. However, Io has more energy to get rid of than the Earth, therefore there is much more volcanic activity on its surface than there is on Earth.