What makes colonizing Mars a good idea? Kim Stanley Robinson’s Mars trilogy Is probably the best example but it mostly uses the backdrop of Mars as a plot device ...

When Philip K. Dick imagined artificial beings in his book "Do Androids Dream of Electric Sheep," the question was whether machines could think and feel like humans. Today, NASA is posing a related, ...

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In a similar vein - it was only a few years ago that fellow Arsians were telling me that it was impossible to build a drone that was capable of carrying living people, that the physics math didn't add ...