When Philae attempted touchdown on comet 67P, it bounced off with nearly enough force to drift away into space.

On Nov. 12, 2014, the European Space Agency's Philae lander touched down on the surface of the Comet 67P/Churyumov-Gerasimenko. But the epic space feat — the culmination of ESA's Rosetta comet-chasing mission — could have ended in failure. Main Story: European Spacecraft Lands on Comet in Historic Space Feat

When mechanisms intended to secure Philae to the surface of Comet 67P failed, the lander bounced back into space twice before settling to rest in partial darkness at the foot of an icy cliff.

Rosetta Mission's Historic Comet Landing: Full Coverage

The action took place 317 million miles (510 million kilometers) from Earth and 14 miles (22.5 km) from the comet, Rosetta released the lander. Philae fell towards the comet for seven hours.

Philae hit the surface at 3.3 feet per second (1 meter per second). Harpoons and a rocket meant to secure the probe to the comet, failed to fire.

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In its first bounce, Philae traveled about 0.6 miles (1 km) up and an equal distance across the comet. Philae ascended with a speed of 15 inches (38 centimeters) per second. Escape velocity from the comet is 19.7 inches (50 cm) per second.

After a second bounce lasting about seven minutes, Philae finally came to rest on the surface.

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