NASA's Mars sample return mission is in trouble. Could a single SLS megarocket be the answer?

A single launch of NASA’s Space Launch System megarocket could loft all the hardware needed to return Mars samples to Earth, according to a new Boeing proposal.

NASA's Mars sample return mission is in trouble. Could a single SLS megarocket be the answer?
A single launch of NASA’s Space Launch System megarocket could loft all the hardware needed to return Mars samples to Earth, according to a new Boeing proposal.