Reconstructing Philae’s flight - YouTube

Data from both the Philae lander and Rosetta orbiter experiments, as well as simulation results based on Philae’s mechanical design have been used to reconst.

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Leap seconds have been added to clocks worldwide since Why are they needed and why the Earth is slowing down?

http://www.atacamaphoto.com/portfolio-overview/

Nature photos of the Atacama desert, Patagonia, South Georgia island and other remote locations.

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