Russian investigators have arrested an award-winning 74-year-old space scientist, who is suspected of passing missile secrets to a Nato country.
Viktor Kudryavtsev is in custody in Moscow, the state space agency Roskosmos confirmed.
On Friday security agents raided a Roskosmos research facility called TsNIIMash in Korolyov, near Moscow.
The alleged spying concerns hypersonic missiles, which fly at more than five times the
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