– They using them right now! In a desert, tho. Test run. Why there is no constant nuclear winter... Ah! They use uranium in it instead of...
He looked around.
– Spoilers, sorry. That answers why this world is... whole and not a new asteroid belt around a star. We used the same construction in Sol-4 colonization program. To create, or to be more specific, restore an ionsphere. Okay, then it is kinda understandable. In my world we tested our nuclear in space. It was like the second sun for an hour. If to belive videos.