SpaceX employees are working on designs for a Martian city, including domed habitats and space suits, and are studying whether humans can procreate outside of Earth. Mr. Musk has volunteered his sperm.
SpaceX employees are working on designs for a Martian city, including domed habitats and space suits, and are studying whether humans can procreate outside of Earth. Mr. Musk has volunteered his sperm.