Long, long ago men and women on Earth gazed in wonder at comets that appeared in the sky. What where these mysterious objects? Rosetta and Philae learn about the history of comets from their grandfather, Giotto.
More videos in the series are available in this playlist:
#RosettaAreWeThereYet – Once upon a time…
Once upon a time… #cometlanding
Are we there yet?
Preparing for #CometLanding
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