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Scientists have found a new
to space travel. They have discovered that our DNA can change when going into
. DNA mutations could increase the
of space travellers getting
. The scientists did research on 14 NASA astronauts who took part in the Space Shuttle programme between 1998 and 2001. The astronauts provided blood
ten days before they went into space and three days after returning to Earth. The
has been frozen for the
20 years. Professor David Goukassian said: "Astronauts work in an
environment where many factors can result in...
." He added: "Space
...means there is a risk that...mutations could develop."
