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Space Mysteries

The universe is a big place. In all of that space, humans have discovered many things that both fascinate and mystify us. Tune in to the National Geographic Channel this month to learn about some intriguing Space Mysteries.

When bright objects with long tails flew through the skies over the ancient world, people were often terrified. Now when we see these impressive lights in the sky, we know they aren't omens of disaster, but comets. Of course, comets are more than just beautiful displays in the sky. The water they hold may someday be used to support human space exploration. NASA's Deep Impact project crashed a spacecraft into one of these balls of rock and ice to discover more about the secrets of Comets.

When we look up into the night sky, what we see is just a fraction of all of the bodies in space. It takes powerful telescopes to see much of what's out there. However, even the most powerful telescope can't see black holes. These are dark points in the universe where the gravity is so strong that even light can't escape. By simulating these mysterious objects on computers, scientists are learning about the many ways in which the universe relies on Black Holes.

There is a lot of debate about the existence of aliens. If they are real, the people at the Search for Extra-Terrestrial Intelligence (SETI) will probably know about it first. This group of scientists and amateur astronomers are searching the skies for evidence of alien life. To do it, they're using huge collections of satellite dishes and advanced computing power. Today, this technology continues mankind's decades-old search for Extra-Terrestrial Intelligence.

Think you know a lot about outer space? There may be more going on out there than you think. Let the National Geographic Channel show you some of the most incredible, unexpected parts of our universe in Space Mysteries.

     
  1.

According to the article, what is true about the universe?

       
    (A)

There are many things about it we don't understand.

    (B) It's too big for us to possibly learn about.
    (C) We can see that it's filled with black holes.
    (D) It doesn't contain any intelligent creatures besides humans.
       
  2.

In the ancient world, comets were thought of as ______.

       
    (A) animals with long tails
    (B) balls of rock and ice
    (C) sources of water in space
    (D)

signs of bad future events

       
  3.

Which of the following is NOT true about black holes?

       
    (A) They are invisible to even powerful telescopes.
    (B)

Their gravity is too minor to detect from Earth.

    (C) Scientists can imitate them on computers.
    (D) They are important in the universe's structure.
       
  4.

Why will SETI probably find out about alien life first?

       
    (A) They know exactly where aliens can be found.
    (B) They have known of their existence for many years.
    (C)

They are searching for aliens with advanced technology.

    (D) They have captured an alien spacecraft.
       
           
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  Answers : 1) A    2) D    3) B    4) C
 
 
 
 
 

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