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Beautiful and mysterious,peaceful and serene
the moon is the brightest object in the night sky
Jupiter and Saturn have more than sixty moons each.
Neptune has thirteen moons
Even mars has two moons
But the Earth, our planet, only has one moon
our nearest neighbor in space.
Even though the moon is close to us
when compared to other planets
it is still very, very far away
The moon is about 239 thousand miles
or 384 thousand kilometers away
You would have to travel all the way around the Earth
nine and a half times
to go the same distance as the space
between the Earth and the Moon
The moon is much smaller than the Earth
if the earth was hollow
about fifty moons could fit inside
Because it is so much smaller than the Earth
the moon’s gravity is much weaker
This means that if you were to visitthe moon
you would weigh much less than you doon earth
only about 1/6th of your current weight
That means that if a giraffe was on the moon
it would only weigh as much as atiger on earth!
Although we can see it shining brightly atnight
the moon does not have any light of its own
Instead, the light of the moon isreally
reflected light from the sun
that bounces off of the rocky, dusty surface of the moon
So that we can see it from Earth.
Because of the way that the moon orbits the earth,
sometimes the sun lights up different parts of it.
This makes the moon appear to change its shapefrom one night to the next
These different shapes of the moon are called its phases
It takes about 29 days for the moon to go through all of its phases
and begin them again
月亮如此地大 如此地明亮 如此地近
Because it is so big, and bright, and closeto us
the moon has always attracted the attention of curious people
But in the mid-20th century
people around the world began to be more interested in space
For the first time
发射火箭 摆脱地球重力 穿过大气层
humans launchedrockets that were able toescape earth’s gravity and atmosphere
and explore what lay beyond.
After a lot of work, and many tests,
humans were able to visit the moonfor the first time.
On July 20, 1969,
the astronauts of America’s Apollo 11 missionlanded on the moon.
On July 21,
Neil Armstrong became the first personto step upon the moon’s surface.
The moon has no atmosphere,
which means there was no air for them to breathe.
The moon also has extreme temperatures
boiling hot in the sunand freezing cold in the shadows.
For this reason, the astronauts needed specialsuits and equipment to protect them on the moon
to keep them the right temperature andallow them to breathe.
No one has visited the moon for more than40 years,
but the footprints made by the astronauts who walked on its surface are still there.
That is because there is no wind or water on the moon
to wash the footprints away.
Unless a meteorite hits the moon and smashes them,
those footprints might last for hundreds oreven thousands of years.
I hope you enjoyed learning more about themoon today
goodbye till next time!