Paragraph 1
Scientists found a
risk to space travel. They found that our DNA can change when going into
. This change could increase the
of astronauts getting
. The scientists did research on the
of 14 NASA astronauts who flew on the Space Shuttle between 1998 and 2001. They gave blood ten
before going into space and three days after returning to Earth. Professor David Goukassian said: "Astronauts work in an
environment where many
can result in...mutations." He added: "Space
...means there is a risk that...
could develop."
