Paragraph 2
                     
                      
It is the first time for 
 to change the 
 of an asteroid. A NASA spokesperson said DART was the 
 of many "planetary protection 
". He talked about the end of the dinosaurs. He said: "We want to have a better 
 than the dinosaurs had 65 million years ago." He added that all the 
 could do was to "look up and say, 'Oh asteroid'". NASA also said DART was a "new 
 for humankind". It said: "It's an era in which we 
 have the capability to protect ourselves from 
 like a dangerous, hazardous asteroid 
."