News Exercise #105

1) What are the two aspects he explained for doing this experiment?

2) What idiom did he use to mean “making progess”?

Answers
1) What are the two aspects he explained for doing this experiment?
He said that there is logistical complexity in having people work and live in space for long periods, and the supply chain that is required to keep them going. He also said that if we (the human race) are ever going to go to Mars someday, we are going to have to have a spacecraft that is much more self-sustainable with regards to its food supply.
2) What idiom did he use to mean “making progess”?
He said that it was a big step in that direction.