True. But a fairly likely opening move in an all-out nuclear war is a set of EMPs over your opponent's territory to weaken their communication and retaliation capability. And those are detonated above the atmosphere.

On Wed, Apr 6, 2016 at 3:50 PM, Bruce Johnson <xxxxxx@pharmacy.arizona.edu> wrote:

> On Apr 6, 2016, at 3:36 PM, Craig Berry <xxxxxx@gmail.com> wrote:
>
> A nuclear war is going to produce a spectrum very different from your general run of habitable star systems -- heavy on x-rays, for example.

nuclear weapons DO produce a lot of X-rays, IIRC, most if not all of them are absorbed by the atmosphere as it is turned into plasma and converted into heat.

In orbit you’ll see a ton of X-ray emissions, I’d think, but atmospheric explosions might not.

--
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs

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Craig Berry (http://google.com/+CraigBerry)
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