Ares 4 MAV Intercept

Lore & Background

The Ares 4 MAV was originally designed to land at the Schiaparelli crater site for the fourth manned Mars mission, scheduled years after Ares 3. When Watney is stranded, the MAV becomes his primary escape option, but it is located far from the Ares 3 landing site. To reach it, he must traverse treacherous Martian terrain, including the vast, boulder-strewn plains of Acidalia Planitia and the rugged highlands near the crater. The rover he uses is a heavily modified unpressurized vehicle, outfitted with extra batteries, solar panels, and a makeshift trailer carrying supplies—a jury-rigged solution born of necessity. It's essentially a space-age station wagon with the aerodynamics of a brick and the reliability of a prayer.

In Their Own Story

The dust settled on the rover's cracked windshield as Mark checked the nav computer for the thousandth time. 'Three thousand two hundred kilometers,' he muttered, tapping the display. 'That's like driving from New York to Los Angeles. On a planet that wants me dead.' He adjusted the oxygen flow, felt the familiar hiss of the suit, and engaged the drive. The rover lurched forward, its wheels grinding against the red regolith. Behind him, the Ares 3 habitat shrank to a speck, then vanished. Ahead, only the endless, empty horizon—and a rocket that might as well be a mirage. He clicked on the radio, knowing no one would answer. 'Alright, Mars. Let's see what you've got.'

Reader's Guide

The Ares 4 MAV Intercept begins after Watney's successful communication with NASA and the realization that his current supplies cannot sustain him until a rescue from Ares 3's return vehicle. He decides to drive to the Ares 4 MAV, which is already on Mars but at a different location. The journey is broken into multiple legs, with Watney stopping to recharge batteries and perform maintenance. Key challenges include navigating through a dust storm that reduces visibility to near-zero, crossing a field of jagged rocks that threaten to shred the rover's wheels like cheese graters, and rationing his limited food and water to the point of near-starvation. The climax occurs when he reaches the MAV, only to find that it has a critical design flaw: it is too heavy to launch with him aboard. He must perform a last-minute modification, ripping out non-essential components and using a makeshift explosive to lighten the craft—a desperate act of mechanical triage. The intercept succeeds when Watney launches from the MAV, rendezvousing with the Hermes spacecraft in orbit. The impact is immense: it proves that human resourcefulness can overcome seemingly insurmountable odds, and it cements Watney's legacy as a symbol of resilience—a man who turned a death sentence into a road trip.

Did You Know?

• The distance Watney drives is roughly equivalent to the width of the United States, making it the longest solo overland journey in human history—and he did it without a single rest stop or cup of coffee.
• The rover used for the intercept was originally designed for short-range exploration, not long-distance travel, requiring extensive field modifications—including a makeshift trailer that would make any backyard mechanic
• Watney's route took him past the Mariner Valley (Valles Marineris), one of the largest canyons in the solar system, though he avoided its steep edges—because falling into a chasm the size of the Grand Canyon wasn't on hi
• The MAV's launch window was so tight that any delay of more than a few hours would have forced Watney to wait years for the next opportunity—talk about a deadline that doesn't budge.