Space/Science — HabitableZone

Space/Science » in reply to The Stones were only ever 2,000 light years from home...

Remember when...

Pulsars were thought to be interstellar beacons for alien starships
navigating through the galaxy, and gamma ray bursts were either
starship engines kicking in or some distant galactic war.

So what else besides dark matter could be generating a concentration
of cosmic rays from a particular point that is not readily visible?

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