Beth Johanssen

Lore & Background

When the Ares III crew is forced to abort their mission after the dust storm that kills Watney's habitat, the immediate assumption at NASA is that he is dead. Beth Johanssen, working within the flight-operations and engineering teams, is part of the group that must manage the political, technical, and human fallout of losing a crew member. Her expertise in the Ares IV lander systems and the broader Mars program positions her as a critical voice when the question shifts from mourning to engineering: can the Ares IV mission be restructured to pull Watney off the planet?

The rescue effort is deliberately framed as a 'we' effort in the novel, a collective of NASA engineers, JPL scientists, and international partners. Johanssen sits at the intersection of that collective—close enough to the hardware to understand what is physically possible, yet high enough in the chain to feel the political pressure from Congress, the public, and the ESA. Her scenes carry the tension of a person who must advocate for an extraordinarily risky plan while knowing that a single miscalculation in delta-v, supply mass, or timing could cost a life.

In the film adaptation, her function is folded into the ensemble of Mission Control, but the narrative beat she represents—someone at NASA who must say 'yes, we can do this, and here is how'—remains central to the story's second-act pivot from despair to action.

In Their Own Story

The fluorescent panels of Flight Control hummed at a frequency Beth had stopped hearing years ago. On the big screen, a red dot pulsed on the orbital map—Watney, alive, somewhere in the Hellas Basin, eating potatoes and talking to a wall. Around her, the room was a controlled storm: phones, murmured briefings, the clatter of keyboards. She pulled up the Ares IV mass budget on her terminal, fingers hovering over the keyboard. Every kilogram she stripped from the lander's science payload was a kilogram of margin for a rescue trajectory that no one had ever flown. She typed a line into the shared doc: *Sampson is possible. We just have to make the numbers work.* Then she leaned back, pressed her palms against her eyes, and listened to the room breathe.

Reader's Guide

Beat 1 – The Abort. The Ares III crew evacuates Mars under the assumption that Watney is dead. Johanssen, in her operations role, helps coordinate the crew's return to Earth and begins the internal NASA process of managing the loss. Stakes: institutional grief, public scrutiny, and the political decision to continue or cancel the Ares IV mission. The turning point is the crew's confirmation that Watney is, in fact, alive.

Beat 2 – The Rescue Architecture. With Watney confirmed alive, Johanssen and the engineering team must determine whether the Ares IV lander can be repurposed. She works through the mass-and-delta-v constraints, stripping science payloads to free up propellant and structural margin. Stakes: the plan must be physically feasible within the Ares IV launch window. The turning point is the go/no-go decision to commit the Ares IV mission to a rescue rather than its original science objectives.

Beat 3 – The International Handoff. The rescue requires ESA's Hermes crew to perform a mid-course correction to intercept the Ares IV lander in orbit. Johanssen coordinates the technical interface between NASA and ESA systems, ensuring the docking and fuel-transfer procedures are compatible. Stakes: a failed intercept strands Watney permanently. The turning point is the successful Hermes intercept and the final extraction of Watney from the lander.

Cross-references: Mark Watney (subject of rescue), Melissa Lewis (crew leader who confirms survival), Rick Martinez (Ares IV pilot), Victor Waters (Hermes commander), Alex Vogel (Hermes crew), Ares IV lander, Hermes spacecraft, JPL engineering team.

Did You Know?

• In the novel, the rescue effort is narrated in the first-person plural 'we,' and Johanssen is one of the voices in that collective, emphasizing that the rescue was a team achievement rather than a single hero's feat.
• The Ares IV lander was originally designed for a crewed science mission to Mars; repurposing it as a rescue vehicle required stripping out significant mass to free up propellant for the new trajectory.
• The rescue plan required coordination between NASA and the European Space Agency, with the Hermes crew performing a critical mid-course correction to meet the Ares IV lander in Martian orbit.
• Andy Weir originally published The Martian as a serialized web novel in 2011 before it was picked up by a traditional publisher, and Johanssen's scenes were part of that early 'we' narration structure.