The safety system designed to pull astronauts away from a failing rocket

Space · Published 9 October 2026 Swipe more like this →

In short: Space travel to Mars requires more than just powerful engines; it requires a fail-safe for the unthinkable. NASA's Orion spacecraft is currently undergoing the installation of its launch abort system, a critical mechanism engineered to physically yank the crew module away from a malfunctioning rocket during the most dangerous phase of flight.

On September 28, 2014, the Orion spacecraft was moved to the Launch Abort System Facility at Kennedy Space Center. This move was a pivotal step toward the Exploration Flight Test-1, scheduled for December 2014. The primary goal of this specific phase is to install and evaluate the launch abort system, which serves as a primary safety net for future human missions to deep space destinations like Mars and asteroids. This move occurred after the spacecraft left the Payload Hazardous Servicing Facility. The vehicle is being developed to transport humans to Mars and other distant locations. This specific test flight is designated as Exploration Flight Test-1.

The mechanism works by pulling the spacecraft away from a failing rocket if a problem arises during launch. During the upcoming uncrewed flight test, NASA will specifically test the jettison motor. This component is responsible for separating the launch abort system from the crew module during both normal operations and emergency scenarios. Once the abort system is stacked and tested with the completed crew and service modules, the spacecraft will be considered fully complete. The rocket and spacecraft are currently at their penultimate stops in Florida. The Delta IV Heavy rocket was manufactured by United Launch Alliance. Kennedy Space Center Director Bob Cabana noted that the team has been working toward this launch for months.

The mission profile for the December 4 launch involves the Delta IV Heavy rocket carrying Orion to 3,600 miles above Earth. After orbiting twice, Orion will reenter the atmosphere at 20,000 miles per hour, enduring temperatures near 4,000 degrees Fahrenheit before splashing down in the Pacific Ocean. While the first flight is uncrewed, the capsule is designed to provide living quarters for up to 21 days for astronauts on future long-duration missions. The Delta IV Heavy rocket consists of three Common Booster Cores that form the first stage. These cores were tested and attached to one another before being connected to the Orion service module. For missions exceeding 21 days, the capsule will include an extra habitat for more space.

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