||The Moon landscape is not like
Earth's. It does not have oceans, lakes, rivers, or streams.
The major features of the Moon's surface can be seen as lighter
and darker areas when you look at it from Earth. The brighter
areas are the highlands, also known as lunar terrae. The darker
plains are called the lunar
maria, or "seas" which they resembled to the
first scientists to examine the Moon with telescopes.
|From what we have seen it is clear
that the highlands
are covered with overlapping craters. The Apollo photographs
show craters ranging from 1 meter to more than a 1,000 kilometers.Essentially
all lunar craters, regardless of their size, were produced
by the impact of cosmic objects or meterorite impact. These
objects strike the surface at a very high speed (70,000 Km/hour).The
impact sends shock waves and creates heat.The objects are
broken apart, some of the material is vaporized, some is melted
and some broken pieces are tossed out of the target area and
piled up around the hole produced. A small amount of the fragmented
material is tossed great distances from the impact area along
paths called rays.
Moon written by an university
professor shows many of the Moon craters in close up photos. The
text is fairly easy to understand and explains craters and other
formations seen on the Moon. A clearly labled map of the Moon
shows the seas visible on the nearside of the Moon.Pictures can
take a while to load if you are on a slower connection.
See also Lunar
Learn more about Moon craters
and how they were formed by making some craters of your own using
the Moon Crater activity.