Sandstorm at Acidalia Planitia

Lore & Background

In the world of *The Martian*, Mars is a world of thin atmosphere and extreme weather, but the sandstorm at Acidalia Planitia is a rare and violent event. While real Martian dust storms can be planet-wide, they are typically low in force due to the thin air. However, the storm in the story is depicted as powerful enough to topple equipment and reduce visibility to near zero, creating a terrifying environment for the astronauts. The storm's sudden onset catches the Ares 3 crew off guard, highlighting the unpredictable nature of Mars and the inherent risks of human exploration there.

In Their Own Story

The sky curdled from pink to a sickly, bruise-dark orange, the sun swallowed by a churning wall of dust. Commander Lewis's voice sliced through the comm, sharp and urgent, each word fighting a tide of static as the wind screamed across the plain. Mark Watney felt the vibration through his boots, a deep shudder in the thin air, then a crack—the communications dish, torn from its mooring, spun through the haze and slammed into his side. The world went black. When the storm finally scoured itself clean, the MAV was a shrinking speck against the horizon, and he was alone, the only sound the whisper of sand skittering across his visor.

Reader's Guide

The sandstorm at Acidalia Planitia strikes on Sol 6 of the Ares 3 mission. The crew—Commander Lewis, Watney, Martinez, Johanssen, Beck, and Vogel—are in the middle of surface operations when a severe dust storm develops with alarming speed. Mission control orders an emergency abort. During the chaotic scramble to the Mars Ascent Vehicle, a dislodged communications array strikes Watney, and his bio-monitor signal flatlines. Following strict abort protocol, the crew launches the MAV to safety, believing him dead. This single event strands Watney alone on Mars, forcing him to survive for over a year until the Ares 4 mission arrives. The storm ends Ares 3 prematurely, triggers a global media firestorm and a NASA crisis, and becomes the crucible in which Watney's ingenuity—and the world's response—is tested. It is a stark reminder that on Mars, the line between triumph and disaster is as thin as the air itself.

Did You Know?

• The storm's speed and force are exaggerated for the story; real Martian dust storms have much lower wind pressure due to the thin atmosphere.
• Acidalia Planitia is a real region on Mars, a lowland plain in the northern hemisphere, chosen for its relatively flat terrain suitable for landing.
• The storm's depiction in the film was achieved using a combination of practical effects, like wind machines and flying debris, and CGI dust.
• The event was inspired by the real threat of Martian dust storms, which can cover the entire planet but are rarely dangerous to equipment.