Artemis II: Humanity Returns to the Moon’s Orbit for the First Time in Decades

For the first time in over 50 years, humans have broken free from Earth’s orbit and are bound for the Moon. NASA’s Artemis II mission is officially underway, marking a historic milestone in deep space exploration and paving the way for the eventual return of astronauts to the lunar surface.

Breaking Earth’s Orbit: The Journey Begins

The mission launched on April 1, 2026, at 6:35 p.m. EDT from Launch Pad 39B at the Kennedy Space Center in Florida. Powered by the Space Launch System (SLS) rocket, the Orion spacecraft carried four astronauts into space for a planned 10-day test flight.

A critical turning point occurred on Thursday, April 2, when the crew successfully completed the translunar injection (TLI) burn. This approximately six-minute firing of the service module’s main engine accelerated the spacecraft, allowing it to escape Earth’s gravitational pull and enter a precise outbound trajectory toward the Moon. This event marks the first time humans have departed Earth orbit since the Apollo 17 mission in 1972.

Meet the Artemis II Crew

The mission is crewed by an international team of four astronauts, each playing a vital role in testing the capabilities of the Orion spacecraft:

• Reid Wiseman (NASA)
• Victor Glover (NASA)
• Christina Koch (NASA)
• Jeremy Hansen (Canadian Space Agency)

As of early April, the crew is gathering critical data and learning from every step of the journey. Having successfully completed the TLI burn, the crew is now focused on outbound trajectory correction burns and preparing for lunar observation assignments.

The Technology Powering the Mission

The Artemis II mission relies on two primary pieces of hardware designed for deep space exploration:

The Space Launch System (SLS)

The SLS is the most powerful rocket ever built, designed specifically to push the Orion spacecraft and its crew out of Earth’s orbit and toward the Moon.

The Orion Spacecraft

Orion serves as the exploration vehicle that sustains the crew during their journey. It is developed to carry astronauts to the Moon and safely return them to Earth. This mission serves as a critical test of Orion’s systems with a human crew aboard for the first time.

Mission Objectives and Timeline

Artemis II is a crewed lunar flyby, not a landing mission. The goal is to demonstrate the capabilities needed for long-term lunar presence and future missions to Mars. The spacecraft is planned to fly within 4,700 miles (7,600 km) of the Moon.

Looking Ahead: The Path to Mars

The success of Artemis II is a prerequisite for the Artemis III mission, which aims to land the first woman and first person of color on the lunar surface. By testing the SLS and Orion with a crew, NASA is validating the safety and efficiency of the systems that will eventually support permanent lunar bases and the first human missions to Mars.

Frequently Asked Questions

Will the Artemis II crew land on the Moon?
No. Artemis II is a lunar flyby mission designed to test spacecraft systems and crew capabilities before future landing missions.

How long is the mission?
The mission is planned to last 10 days, with the crew returning to Earth on April 11, 2026.

Why is this mission historic?
It is the first crewed mission to leave Earth’s orbit since 1972, restarting human exploration of deep space.