Philae's silent legacy on the frozen surface of Comet 67P

Space · Published 8 October 2026 Swipe more like this →

In short: After a historic landing on a comet hundreds of millions of miles from Earth, the Philae lander has gone silent. Deprived of sufficient sunlight to power its batteries, the craft now faces an eternal hibernation, leaving behind a revolutionary body of scientific data.

The Philae lander, part of the European Space Agency's Rosetta mission, achieved a landmark feat on 12 November 2014 by touching down on Comet 67P/Churyumov–Gerasimenko. The landing was far from smooth; the craft bounced several times and ultimately settled more than a kilometer away from its intended target. Despite these challenges, Philae managed to complete 80% of its planned first science sequence, transmitting over 60 hours of research back to Earth before losing contact. This historic descent occurred on 12 November 2014. The mission's success was highlighted by the ESA in a recent video recap.

Communication with the lander was intermittent during a brief window of activity last summer. While contact was maintained on 13 June and through 9 July, the craft has since fallen silent. Stephan Ulamec, the Philae project manager at the German Aerospace Center (DLR), noted that the chances of receiving a new signal are approaching zero. Because the lander no longer receives enough sunlight to recharge its batteries, mission teams have ceased sending commands, marking the beginning of an eternal hibernation. The ESA even shared a cartoon depicting the situation. This illustration shows the orbiter imagining its small companion resting on the cold surface.

The scientific impact of the mission remains profound. Data collected by Philae regarding the physical and chemical conditions of the comet has revolutionized our understanding of these celestial bodies. While the lander remains silent, the Rosetta orbiter continues its mission, with plans to conclude the operation by making a controlled impact on the comet's surface in late September. This final act will bring a definitive end to the mission's exploration of 67P. This final maneuver is scheduled for late September. It will conclude the long-standing exploration of the comet.

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