nostr:npub1j8ewanapqtetqyl6w49rxgrhvlqag3q43vsmdlx4crs4z9mdl3ys9ympny nostr:npub13pvwhs7xjewj5ad8fnj6tzqylr78c6fvuxqah7dpucgyqwzkd39se5dl8a nostr:npub159fznm25ns4jnkgha5uqw0h8hfzy3f5zjqel3xxt75zq0aldl2fsp9vg75 

There will be a small amount of heat that transfers across the vacuum via black body radiation. Vacuum is not a perfect insulation.