Re: Germany Just Landed a probe on a comet
The Rosetta spacecraft was launched in March 2004, with Philae inside, by the European Space Agency. Since then it travelled more than 6.5 billion km to catch up with Comet 67P/Churyumov-Gerasimenko.
When the landing took place, Rosetta, Philae and the comet were nearly 505 million km from Earth, between the orbit of Mars and Jupiter (for context, the average distance between the Earth and the Sun is 150 million km). At this distance, it takes 28 minutes for the speed-of-light radio communications to reach Earth from Rosetta and Philae.
This mission has been described as one of the most complicated and ambitious ever attempted.
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