Paragraph 2
It is the first
that humans have tried to change the
of a space object. NASA spokesperson Glen Nagle said DART was the
of many "planetary protection missions". He compared our
of surviving an asteroid hit to the
of the dinosaurs. He said: "We want to have a better
than the dinosaurs had 65 million years ago." He added that in pre-
, all the dinosaurs could do was to "look up and say, 'Oh asteroid'". Another spokesperson, Lori Glaze, said DART represented a "new
for humankind". She said: "It's an era in which we
have the capability to protect ourselves from something like a dangerous, hazardous asteroid
."