Russia proposing another nuclear spacecraft project?

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The Keldysh Center of course with nuklon proposed the spacecraft in 2030 to release a payload to the Earth's moon, Venus orbit and than one of Jupiter's moons. Than all of a sudden they are proposing a nuclear spacecraft to launch a module near a lunar base and than dispatch a nuclear reactor to land on Mars and power the bases on it. Is there like a change of plans? or this is another nuclear spacecraft projects that KB arsenal released earlier because ironically enough the Maks 2021 aviation/Space show is scheduled about a week or 2. Will post 4 more translated images after this one.