What will be the sign of the product 'of we multiply 70 negative integer and 7 positive integer?

if we will multiply 70 negative and 7 positive integer the product will be in positive

during longer space exploration trips, crewmembers may develop vision impairment risks and short-term cardiac atrophy or a decrease in the size, strength, weight, and activity of the heart during space flight because they can experience microgravity. in addition, the long-term medical condition is loss of bone mineral density and radiation exposure.