As the Orion spacecraft sweeps around the lunar far side, the four-person crew of Artemis II is doing more than just testing hardware—they are venturing further into the cosmos than any human being has ever traveled.

Surpassing Apollo 13

For over five decades, the record for the farthest distance humans have traveled from Earth was held by the crew of Apollo 13. In April 1970, due to an emergency “free-return” trajectory, Jim Lovell, Jack Swigert, and Fred Haise reached a distance of approximately 400,171 kilometers (248,655 miles) from Earth.

Artemis II is designed to eclipse this milestone. By utilizing a similar free-return trajectory that swings deep behind the Moon, the Orion spacecraft will carry Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen roughly 10,300 kilometers (6,400 miles) beyond the lunar far side.

Why the Extra Distance?

The mission profile, known as a Hybrid Free Return Trajectory, is a safety-first approach. It ensures that if the spacecraft’s propulsion system fails after the initial Trans-Lunar Injection (TLI) burn, Earth’s gravity will naturally pull Orion back home after one loop around the Moon.

This high-altitude loop provides:

  • Extended Deep Space Exposure: Testing life support systems in the harsh radiation environment far from Earth’s magnetic protection.
  • Visual Mapping: Unique opportunities to capture high-resolution imagery of the lunar far side.
  • Communication Stress-Testing: Validating the Deep Space Network (DSN) at maximum lunar distances.

The View From Orion

As they reach their “apogee” from Earth, the crew will witness a perspective few have ever imagined. The Earth will appear as a tiny, fragile “Blue Marble” in the void, while the rugged, crater-scarred terrain of the lunar far side—never visible from Earth—passes beneath them.

A New Era of Exploration

While Apollo 13’s record was an accidental byproduct of a survival strategy, Artemis II’s record is a deliberate step toward sustained lunar presence. This mission proves that Orion and the Space Launch System (SLS) are capable of safely carrying humans into the deep space environment required for future landings at the lunar South Pole and, eventually, the journey to Mars.

To stay updated on the crew’s progress and current distance from Earth, visit the NASA Artemis Real-Time Orbit Website (AROW).