Chapter 30 - Planetary Science Flashcards
Most of the information astronomers have gathered about the interior of the moon come from
Seismographs
Dark areas on the moon that are smooth and reflect little light are called
Maria’s
Soon after the moon formed, it was covered with
Molten rock
In the most recent stages in the development of the moon, the
of meteorites hitting the moon decreased
The moon is closest to the earth at
Perigee
During each orbit around the earth, the moon spins on its axis
1 time
In a lunar eclipse,
The moon is in the earths shadow
When the size of the visible portion of the moon is decreasing, the moon is
Waning
In the crescent phases, the entire moon shines dimly because of
Sunlight reflected off the earth
Compared with the other moons of Jupiter, the four Galilean moons are
Larger
The rings of Saturn are probably composed of billions of
Pieces of ice and rock