Intuitive Machines Uncrewed Lander

IM-2 Nova-C (Athena)

Second Intuitive Machines lunar mission. Achieved southernmost lunar landing to date near Mons Mouton.

Status Completed
Launch Feb 26 2025
Landing Mar 6 2025
Record Southernmost landing
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Mission Overview

IM-2 marked Intuitive Machines' second lunar mission and achieved the southernmost landing in lunar exploration history when the Nova-C lander "Athena" touched down near Mons Mouton on March 6, 2025, at approximately 84.5 degrees south latitude. This placed the lander deeper into the lunar south pole region than any previous mission.

The primary payload was NASA's PRIME-1 (Polar Resources Ice Mining Experiment-1), consisting of a drill called TRIDENT and a mass spectrometer called MSolo — hardware designed to search for water ice below the lunar surface. The mission also carried a micro-rover hopper and several commercial payloads.

Like its predecessor IM-1, the landing did not go entirely as planned. A faulty laser altimeter caused Athena to touch down approximately 400 meters from its target inside a small crater, and the lander tipped onto its side. The crew activated PRIME-1 before power was depleted on March 7, approximately one day after landing — a significantly shorter surface operation than planned.

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Technical Overview

Lander Height ~4.0 m 13 ft
Dry Mass ~675 kg Upgraded from IM-1
Propellant LOX / LCH4 Liquid oxygen / liquid methane
Primary Payload PRIME-1 NASA drill + spectrometer
Landing Latitude 84.5°S Record southernmost landing
Landing Accuracy ~400 m From target
Surface Operations ~1 day Before power loss
Drill TRIDENT 1 m depth capability
Micro-Rover Hopper Crater exploration design
Communication DSN Direct-to-Earth via Deep Space Network
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Mission Objectives

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Southernmost Landing

Demonstrate precision landing capability at extreme south polar latitudes near permanently shadowed craters, deeper into the south pole than any prior mission.

02

Ice Drilling (PRIME-1)

Use the TRIDENT drill to penetrate up to 1 meter below the surface and analyze subsurface material with the MSolo mass spectrometer, searching for water ice.

03

Micro-Rover Deployment

Deploy a small hopper-style micro-rover to explore terrain and demonstrate mobility near permanently shadowed regions.

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Permanently Shadowed Region Investigation

Characterize the environment near permanently shadowed craters at the south pole, including temperature, illumination, and surface conditions.

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Improved Navigation Validation

Test updated navigation systems following the rangefinder issues on IM-1, including improved altimeter redundancy.

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Outcome

Landed at Record Latitude — Tipped in Crater, Abbreviated Operations

Athena achieved the southernmost lunar landing in history on March 6, 2025, touching down at approximately 84.5°S latitude near Mons Mouton. However, a faulty laser altimeter caused the lander to miss its target by roughly 400 meters, landing inside a small crater and tipping onto its side.

Despite the compromised orientation, operators activated several payloads including the PRIME-1 drill experiment before batteries were depleted on March 7 — giving the mission only about one day of surface operations compared to the planned multi-day mission. The landing demonstrated access to extreme south polar regions but highlighted continued navigation challenges for the Nova-C platform.

Landing Latitude 84.5°S Record southernmost lunar landing
Surface Operations ~1 day
Landing Offset ~400 m From target — tipped in crater
Key Payload PRIME-1 Activated before power depletion
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Spacecraft

Spacecraft diagram coming soon
01 Nova-C Lander (Upgraded) Enhanced version of the IM-1 lander with improved avionics and additional payload capacity. Same hexagonal carbon fiber structure with six landing legs.
02 VR900 Engine Throttleable LOX/methane engine for powered descent. Same propulsion system as IM-1 with updated flight software.
03 PRIME-1 Payload Suite NASA's Polar Resources Ice Mining Experiment. Combines the TRIDENT rotary-percussive drill with the MSolo mass spectrometer to detect water ice below the surface.
04 Micro-Rover Hopper Small mobile platform designed to explore nearby terrain and potentially access permanently shadowed crater areas unreachable by the lander.
05 Navigation & Communication Updated navigation sensors (following IM-1 rangefinder issues) and direct-to-Earth communications via NASA's Deep Space Network.
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Mission Updates

Intuitive Machines IM-2 Mission Ends After Power Depletion

The Athena lander's mission concluded after batteries depleted, approximately one day after landing. Despite tipping on its side in a crater, the lander activated several payloads including NASA's PRIME-1 experiment before power loss.

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Intuitive Machines Athena Lands at Lunar South Pole

IM-2 Nova-C lander 'Athena' achieved the southernmost lunar landing to date near Mons Mouton. A faulty laser altimeter caused the lander to touch down approximately 400 meters from its target inside a crater, coming to rest on its side.

Read Source
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