3 ms·
However, nuclear thermal was also not just considered, but actively developed, under the NERVA program which ran from the fifties until 1973.
by Sharlin 6y ago
However, nuclear thermal was also not just considered, but actively developed, under the NERVA program which ran from the fifties until 1973.
- aerostable_slug 6y agoIt's continued development afterwards in different forms. Project TIMBER WIND was a pebble-bed reactor upper stage for SDI boost phase intercepts. The reactor wouldn't be spun up until after the missile had cleared the atmosphere, so there's no fallout to worry about.