If anyone is wondering what happened to the NASA articles I post here as much
as I am, I've been receiving the following from their site for several months,
even though I have been a subscriber for many years:
 
The Science@NASA list is being upgraded. It is currently unavailable but will
be back soon!
 
I got the last article from them on 31 May, 2016 and I had to go to the site
to get it.  Evidently the list I was on was purged and the fact that nobody is
doing anything about it is a little troublesome, but I'm not going to lose any
sleep over it and neither should you.
 
Coming soon to a rocket near you:
 
A Xenon-Ion propulsion engine -- top speed 90,000 MPH!
 
 
Regards,
 
Roger

--- DB 3.99 + Windows 10
 * Origin: NCS BBS - Houma, LoUiSiAna (1:3828/7)