Paragraph 2
Astronaut pee and moon
could save
. It costs $10,000 to take 0.45kg of
to the Moon. The urine and moon dust would be
. A scientist said the urine of the
living on moon bases could be used. She added: "The
water in the urine could be used for the
, together with [water] that can be obtained on the Moon." Scientists say
need to do more
to find the best
material.
