Walking on the moon:

Walking on the moon:
Congratulations are in order to the European Space Agency, which has succeeded in landing a small craft on a fast moving comet. Sort of. Unfortunately the two harpoons that are meant to hold the Philae lander on the surface failed to fire so it may be bounced off its precarious perch sooner than hoped for.
Even so, this is the sort of cutting edge science that shows the best of the human race. Comets are the most likely source of this planet’s water and possibly of life on earth. So this landing gives us a chance to learn about the way the solar system operates and our place in it. Hopefully the answer will add up to more than 42.

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