niko efstathiou, thank ou breath. a big day. niko efstathiou, thank you very _ breath. a big day.r _ breath. a big day. niko efstathiou, thank you very much for that. i the white house national security spokesman has confirmed that classified reports of a national security threat in the us pertain to russia's anti—satellite capability. us media, citing officials, had spoken of the development of a space—based nuclear capable weapon, but mr kirby hasn't confirmed this. the national security adviser, jake sullivan, has been meeting he says it yet active. with me isjuliana suess, who is a research analyst for space security at the royal united services institute, a think—tank. thanks for coming on the programme. thanks for coming on the programme. thank you for having me. we don't know a whole lot of what's actually going on at the moment. we know there is a supposedly nuclear capable satellite, but we don't know if this is because the satellite is powered or actually a nuclear weapon. powered or actually a nuclear wea on. ., powered or actually a nuclear wea on. . . , weapon. right,