The Philae lander’s touchdown on Comet 67P on November 12, 2014 marked humanity’s first-ever landing on a comet, a decade-long mission culminating in a nail-biting finale.
The Mission
ESA’s Rosetta spacecraft chased Comet 67P/Churyumov-Gerasimenko for 10 years, traveling 4 billion miles. The washing-machine-sized Philae lander separated on November 12, 2014, descending for seven hours before bouncing twice and settling in a shadowy crevice.
#CometLanding Goes Viral
The mission captured global imagination through ESA’s savvy social media strategy - Philae and Rosetta had “personalities” tweeting updates. The hashtag #CometLanding trended worldwide as millions watched the livestream. Philae’s battery-powered “sleep” after 57 hours created emotional investment.
Scientific Payload
Before hibernating, Philae drilled samples and detected organic molecules, supporting theories that comets delivered life’s building blocks to Earth. Rosetta orbited the comet for two years, witnessing its transformation as it approached the Sun, revealing water composition different from Earth’s.
The Wake-Up
In June 2015, Philae briefly woke up as sunlight finally reached its panels, transmitting data bursts before falling silent forever. Rosetta crash-landed on the comet in September 2016, ending the €1.4 billion mission. The final image was transmitted seconds before impact.
Source: ESA Rosetta Mission