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The first manned-mission to land on the moon was commanded by Neil Armstrong and was called
these objects are moving away from us
a comet
corona
galaxies
distance
Apollo 11
the rotation of the Earth on its axis
gravitational pull
Periodically, there are spectacular meteor showers on Earth. These showers usually occur because the Earth's orbit passes through the remains of
these objects are moving away from us
a comet
corona
galaxies
distance
Apollo 11
the rotation of the Earth on its axis
gravitational pull
Most of the objects astronomers observe outside our galaxy show what is called a red-shift. What does this red-shift mean about these objects' motions?
these objects are moving away from us
a comet
corona
galaxies
distance
Apollo 11
the rotation of the Earth on its axis
gravitational pull
A light year measures
these objects are moving away from us
a comet
corona
galaxies
distance
Apollo 11
the rotation of the Earth on its axis
gravitational pull
What are giant collections of clouds of gas and dust, along with many millions of stars, called?
these objects are moving away from us
a comet
corona
galaxies
distance
Apollo 11
the rotation of the Earth on its axis
gravitational pull
Which layer of the sun is seen during a total solar eclipse?
these objects are moving away from us
a comet
corona
galaxies
distance
Apollo 11
the rotation of the Earth on its axis
gravitational pull
Which of these causes days and nights
these objects are moving away from us
a comet
corona
galaxies
distance
Apollo 11
the rotation of the Earth on its axis
gravitational pull
A person weighs more on the Earth than on the moon because the Earth has a greater
these objects are moving away from us
a comet
corona
galaxies
distance
Apollo 11
the rotation of the Earth on its axis
gravitational pull
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