IM-2 Mission: Athena Lands on the Moon… But on Its Side

On March 6, 2025, the Athena lunar lander, developed by the American company Intuitive Machines, attempted a new milestone as part of the IM-2 mission. Its goal was to soft-land near the lunar south pole, a strategically important region for future exploration and the search for water ice. After a tense descent, Athena successfully reached the Moon’s surface, landing just 250 meters from its intended target. However, the initial excitement quickly turned to uncertainty. Technical issues encountered in the final landing phase caused the lander to touch down on its side, compromising its ability to function properly. This event serves as a reminder that lunar landings remain a major technological challenge, even with modern advancements. Just days before Athena, Firefly Aerospace’s Blue Ghost mission had achieved a successful lunar landing, making it the first private company to do so. Each attempt provides valuable lessons, but also comes with significant risks, as demonstrated by the recurring issues faced by commercial landers.

The Landing Sequence

On March 6, 2025, after several days of travel from Earth, the Athena lander began its final descent toward the lunar surface. The objective was clear: to soft-land on the Mons Mouton plateau, approximately 160 km from the lunar south pole, a key region for future exploration due to the potential presence of water ice.

A High-Tension Descent

Everything seemed to be going as planned when Athena initiated its braking phase upon approaching the lunar surface. The lander was supposed to use a laser navigation system to adjust its trajectory and identify a safe landing site. However, an unexpected anomaly quickly emerged: the primary navigation system failed to operate as expected, forcing ground teams to activate a backup mode using an alternative altimeter.

A Successful… Yet Imperfect Landing

Despite these technical complications, Athena managed to reach the lunar surface, though not exactly as planned. The lander touched down approximately 250 meters from its intended target, which remains a remarkable technical achievement. However, a new concern arose: signals from the spacecraft suggested that it was not resting on its landing legs, but had instead tipped over or landed on its side. Initial communication attempts confirmed that Athena was still functional and capable of transmitting data. However, this unusual position compromised its operational capabilities, particularly the orientation of its solar panels, which are crucial for power generation

An Operational but Limited Lander

Athena’s sideways landing had immediate consequences, severely restricting its capabilities and leading to a premature end to the mission. Shortly after touching the surface, Intuitive Machines confirmed that Athena was still functional and capable of transmitting data. However, its tilted orientation posed a major issue: the solar panels, designed to deploy vertically, were not properly aligned with the Sun. This severely limited the lander’s power supply, drastically reducing its operational lifespan.

Compromised Scientific Experiments

The lander carried several scientific instruments and payloads for NASA and private companies. Among the most anticipated experiments:

• TRIDENT: A drill designed to extract lunar soil samples in search of water ice. Due to Athena’s tilted position, it was unlikely to be effectively deployed.
• MSolo: A mass spectrometer intended to analyze the chemical composition of the lunar surface.
  Lunar Outpost’s MAPP rover: A small rover that was supposed to explore the surroundings of the lander. However, its deployment was impossible with Athena lying on its side.

Despite these setbacks, NASA confirmed it received 250 megabytes of data from the lander.

A Premature End to the Mission

Given these challenges, Intuitive Machines announced the end of the mission just hours after landing. Athena’s inability to recharge its batteries ultimately sealed its fate, leading to an early shutdown.

A Partial Success Despite an Imperfect Landing

Although Athena’s landing did not go as planned, it still became the first commercial lander to touch down so close to the lunar south pole. This technical achievement confirms Intuitive Machines’ ability to develop spacecraft capable of reaching strategic sites for future exploration. The company also demonstrated its real-time adaptability: by switching to an alternative navigation mode after the failure of the primary system, Athena avoided a crash and managed to soft-land, albeit in an unfavorable position.

Looking Ahead to IM-3 and Beyond

Despite this partial failure, Intuitive Machines is far from done. The IM-3 mission, planned for 2026, is also set to land near the lunar south pole. Learning from Athena’s experience, the company will optimize its approach and address weaknesses in its landing systems. NASA, which relies on private partnerships to advance lunar exploration, will also analyze this incident to refine its technical requirements. With the Artemis program on the horizon, each mission like IM-2 provides crucial data to prepare for astronauts’ first steps on the Moon in the coming years. With IM-3 and future Artemis missions in development, the goal remains clear: to master lunar landings and pave the way for a sustainable human presence on our celestial neighbor. Despite its short-lived mission, Athena contributed valuable data that will help shape the future of lunar exploration. 🚀🌕

Source

The NASA article on the received data is available here. The press releases from Intuitive Machines regarding the IM-2 mission can be found here.