Asteroids made easy: 'Patch of asteroid' being built inside a satellite

A dozen astronauts have walked on the moon, and several rovers have been piloted on Mars, giving us a good understanding of these off-world environments. But when it comes to asteroids, scientists enter uncharted territory. Landing on an asteroid is notoriously difficult. Scientists are now looking to mitigate risk involved in landing on an asteroid by building a "patch of asteroid" inside of a small, spinning satellite.

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