Four days after Firefly's triumph, Intuitive Machines aimed higher and harder: Mons Mouton, a flat-topped mountain about 160 kilometres from the lunar south pole, closer to the pole than anyone had ever attempted a controlled landing. Athena, the company's second Nova-C lander, had launched on a Falcon 9 on 26 February 2025 carrying a drill to hunt for water ice, a rocket-powered hopper, a rover, and the first 4G cellular network hardware sent to the Moon. On 6 March, mission control in Houston fell quiet as the telemetry refused to resolve into good news.
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Athena's laser altimeters had fed noisy, unreliable readings during the final descent, an echo of the sensor trouble that plagued its predecessor Odysseus a year earlier. The lander came down roughly 250 metres from its target, caught the surface faster than intended, and toppled onto its side inside a small crater. Its solar panels pointed the wrong way in the brutal cold of high-latitude shadow. The southernmost landing in lunar history was real, but the spacecraft could not recharge.
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What followed was a sprint against dying batteries. Controllers accelerated every milestone they could reach. NASA's PRIME-1 suite proved out its hardware: the TRIDENT drill swung through its full range of motion, and the MSOLO mass spectrometer sniffed the thin environment, detecting elements likely liberated from the lander's own propulsion gases. Roughly 250 megabytes of data reached Earth for NASA before Athena went silent at 12:15 a.m. Central time on 7 March, less than 13 hours after touchdown.
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The casualties of the tip-over were the mission's boldest ideas. Grace, a hopper named for computing pioneer Grace Hopper, was meant to leap into a permanently shadowed crater; it never flew. Lunar Outpost's MAPP rover never rolled off, and Nokia's 4G network had nothing to talk to. Intuitive Machines absorbed a second sideways landing in thirteen months, published its altimetry fixes, and turned toward IM-3, while NASA defended the gamble: some payload data from the pole, it argued, beats none.
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Each success and setback are opportunities to learn and grow, and we will use this lesson to propel our efforts.
Nicky Fox · NASA associate administrator for science
By the numbers
Launch
26 Feb 2025, Falcon 9 from Kennedy Space Center
Landing
6 Mar 2025
Landing site
Mons Mouton, ≈160 km from the lunar south pole
Miss distance
≈250 m off target, inside a small crater
Surface operations
Less than 13 hours
Data returned
≈250 MB for NASA
Why it mattered
IM-2 drew the boundary line of mid-2020s lunar capability: getting to the south pole region was now possible for a commercial lander, but surviving there was not yet routine. The mission exposed how lethal the pole's deceptive lighting, rugged terrain, and altimetry challenges are, lessons that fed directly into IM-3, NASA's CLPS risk posture, and every Artemis-era south-pole landing plan. It also normalized NASA's portfolio logic for commercial missions, where a tipped lander returning partial data is a setback to learn from rather than a program-ending failure. The ice-prospecting questions PRIME-1 carried remain open, waiting for the next attempt.
▸Despite ending on its side, Athena still holds the record for the southernmost controlled landing on the Moon.
▸It carried Grace, a rocket-powered hopper named after Grace Hopper, designed to jump into a permanently shadowed crater hunting water ice; it never got the chance to fly.
▸Nokia's Lunar Surface Communication System aboard Athena was the first 4G/LTE cellular network hardware ever delivered to the Moon.
▸NASA's MSOLO spectrometer turned the mishap into an accidental experiment, detecting elements likely from the lander's own propulsion gases.
▸It was the second Intuitive Machines lander in thirteen months to tip over after landing, following IM-1's Odysseus in February 2024.
