Deke must recruit female astronauts after Russia lands a woman on the moon.

A training accident spurs a national debate about women astronauts.

A launchpad accident leads to delayed missions and FBI background checks.

Ed, Gordo, and Danielle struggle with an extended Jamestown mission.

Ed handles a trespasser. Ellen and Deke chart a new course without Mission Control. Season finale.

Nearly a decade later, technology and lunar exploration have taken huge strides—but a solar storm threatens the astronauts on Jamestown.

Margo must lead a seemingly impossible mission. Danielle wants to return to the moon. Gordo grapples with life on Earth.

With a little help from Molly, Ed plans a career change—as his old Jamestown crewmates Gordo and Danielle struggle.

American astronauts and NASA leadership prepare for a new mission with unlikely partners. Ellen gets in touch with an old friend.

Ellen is challenged by her new role. Margo’s allegiances are put to the test. Karen explores new opportunities—personally and professionally.

The rivalry between American astronauts and Soviet cosmonauts intensifies as last-minute changes impact the Pathfinder mission plan.

A commercial spaceflight company makes an announcement. The choice over who’ll command the Mars mission leads to a shift in personnel.

A surprise maneuver during the journey to Mars provokes desperate measures.

The astronauts move quickly to build Martian bases.

A joint mission brings about conflict between crew members.

After a sudden crisis, the Martian crews pull together.

Plans to leave Mars are complicated by an unforeseen issue.