Space exploration is a broad topic covering many facets of deep-space and planetary science. Learn about space probes, Mars Rovers, SETI and other out-of-this-world subjects.


How do you land a spaceship on a comet?

Catching a speeding comet, let alone landing on one, requires trick-shot billiards on an astronomical scale. Crazy as it sounds, the European Space Agency might just pull it off.

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