And his brother
https://en.wikipedia.org/wiki/Sukhoi_T-4
Air Force Museum - Monino, Russia
Already with an interesting fixed canard design, so that detail was already known some years before the 144.
The
view from behind with the 4 grouped engine exhausts looks line a Star Wars battleship to me... Especially if you see it live on a grey and frosty day in Monino.