A Visionary Project Aims for Alpha Centauri, a Star 4.37 Light-Years Away

Re:A Visionary Project Aims for Alpha Centauri, a Star 4.37 ... by tgflynn on Tuesday April 12, 2016 @02:04PM (#11481965)

I don't think you'll find 0.2c relative velocities except near very energetic phenomena, especially not of things that are too small to easily see coming.

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Re:A Visionary Project Aims for Alpha Centauri, a Star 4.37 ... by skykooler on Tuesday April 12, 2016 @02:49PM (#11482401)

Cosmic rays are far too small to easily see coming, and we get those all the time here.

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Re:A Visionary Project Aims for Alpha Centauri, a Star 4.37 ... by tgflynn on Tuesday April 12, 2016 @06:36PM (#11484177)

I think it should be clear from the context that this discussion was about macroscopic objects. Cosmic rays don't carry the kinetic energy equivalent of a medium size nuke.

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