In 1966, John Wheeler, who had contributed to the H-bomb project, described a hypothetical, far more energetic 'gravity bomb.' (NY Times)pic.twitter.com/vIoC4hiOSQ
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Could this be the Satan missile Russia talked about a year ago? The chain reaction that would wipe out Earth is freaky 
No. Wheeler is talking about an anti-matter weapon — something that requires a lot of anti-matter, which is hard to make/store.
It's all leading up to Davros and his Reality Bomb.
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