Thursday, February 14, 2013

Asteroid 2012 DA14 pays us a visit.

 Today  (Feb. 15) the 150-foot-wide (45 meters) asteroid 2012 DA14 will be just 17,200 miles (27,000 kilometers) from Earth — the closest encounter with such a large space rock that researchers have ever known about in advance.
Watch the video  to learn some interesting facts about this asteroid and then choose the correct answer in the listening comprehension exercise below.


1-Is DA14 visible to the unaided /naked  eye  (a simple vista) ?

A-Yes, if you know where to look.
B- No, but in some parts of the world it will be visible using a pair of binoculars.

2-Who discovered the asteroid ?

A- A group of Spanish astronomers.
B- NASA scientists.

3-Has an asteroid this size ever hit the Earth ?

A- No, never. The Earth would have been destroyed.
B- Yes, a century ago in Siberia.

4-Do we have something to worry about ?

A- No, its orbit is very well known and it will not hit the Earth .
B- Yes, the asteroid might hit the moon .

5-Is NASA on the look out for asteroids like DA14 ?

 A- Yes, nightly.
 B-  Yes, occasionally.


Answers:  1-B/2-A/3-B/4-A/5-A.

No comments: