[aruanan]

So both poles got bombarded ?

Incoming protons at the north pole. Relativistic electrons at the south pole producing synchrotron radiation.

They now think those cave paintings were made about 10,000 BC when the Ice Age ended ?

Up to as late as perhaps 3000 BCE.

[justa-hairyape]

So the reports we have links too refer to a catastrophic event occurring about 10,000 BC that may have helped to end the last ice age. Along with other less catastrophic events that have occurred since then.