Reply to post: Re: Look for the EMP

ALIENS are surely AMONG US: Average star has TWO potentially Earth-like worlds

Nigel 11

Re: Look for the EMP

In the cosmic scheme, these are very very very very faint.

Unlike GRBs (gamma-ray bursts). One of those in our galactic neighbourhood could all but sterilize our entire galaxy. We're assuming these are natural phenomena, but are we sure?

And then there's whatever mystery created the "Oh My God" particle (3x10^20 eV, or fifty Joules!). Whatever made it must have been within our galaxy, because its half-life before interaction with a cosmic background microwave photon precludes any extra-galactic origin.

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