Paragraph SixA study recently published suggests there is ice on

Paragraph SixA study recently published suggests there is ice on the moon. If there’s enough of it, researchers believe it could be a water source for a future moon mission. Scientists involved in the study are hoping another mission will be carried out to examine the remote parts of the moon and better map it out.It m______ if there is enough ice on the moon.
【正确答案】：matters