“Cosmic rays, from Venus?”

You heard right. Very high energy panicles. And in about four hours we’re expecting a blast shell to impact the top of Earth’s atmosphere. The lower energy stuff, coming at thirty or forty million miles an hour. Monica, it’s as if a miniature supernova went off in our back yard. Hell, we’re even seeing a neutrino flux.

“That’s impossible.”

Nevertheless. I’m not anticipating a lot of sleep in the next few days. Monica, that thing is going to be naked-eye visible, even at noon. It’s going to be unmissable.

So the public would wake up to it, to funny lights in the sky. Monica was one of the President’s senior science advisors. How was Monica going to brief her on this? “Tell me what to expect.”

The low-energy cosmic rays will be deflected by the Van Allen belts, which will fill up. We have to expect auroras. Spectacular stuff. Alfred sounded excited, as well he might, she mused; it sounded as if he might get priority on this discovery. The higher-energy stuff will make it through to the atmosphere. Crack the air molecules, create showers of secondary panicles. We have to expect a significant increase in background radiation.

“How much? For how long?”

We don’t know, Monica. We’ve never seen anything like this before. There is also the shower of X-ray and gamma rays. We don’t know how strong it will be at its peak. Maybe there will be some immediate deaths. More likely we will see a pulse of internal cancers, skin cancers, cataracts, in the coming months and years. We will have to monitor the food chain.

“What should the President tell people?”