Bell work The first astronauts to land on the moon were quarantined after their mission. NASA wanted to make sure that the astronauts didn’t bring back any disease-causing organisms from the moon. Do you think that this would be possible? Why or why not? Write your responses in your science journal.

Satellites

Today’s Objectives Describe the current theory of the origin of Earth’s moon. Describe the individual characteristics of the moons of Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.

Satellites Click below to watch the Visual Concept. Visual Concept

Luna: The Moon of Earth The Surface of the Moon The surfaces of bodies that have no atmospheres, such as the moon, preserve a record of almost all of the impacts that the bodies have had. Lunar Origins The next slide shows how scientists think the moon probably formed.

Moon Formation Click below to watch the Visual Concept. Visual Concept

The Moons of Other Planets The Moons of Mars Mars’s two moons, Phobos and Deimos, are small and dark. The Moons of Jupiter Jupiter has dozens of moons.(50 known, and 14 waiting conformation) Liquid water may lie beneath the icy surface of the moon Europa. Ganymede is the largest moon in our Solar system. In 1610, Galileo Galilei discovered the 4 largest moons of Jupiter using just a telescope. The Moons of Saturn Like Jupiter, Saturn has dozens of moons. (53 known and 9 waiting confirmation) Most of these moons are small bodies of mostly frozen water but contain some rocky material. Titan is the 2nd largest moon in our Solar system

The Moons of Other Planets, continued The Moons of Uranus Uranus has several moons. (27 known) Uranus’s largest moons are made of ice and rock and are heavily cratered. Miranda is the most intriguing showing most signs of craters. Uranus’s moons are named after women in Shakespeare's plays and Alexander Pope’s poem. The Moons of Neptune Neptune has several known moons,(13 known) only one of which is large, Triton The large moon has a thin atmosphere of nitrogen. The Moon of Pluto Pluto has 3 moons the most known moon is Charon. Charon’s orbit is tilted relative to Pluto’s orbit.

Today’s Objectives Describe the current theory of the origin of Earth’s moon. Describe the individual characteristics of the moons of Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.