The James Webb Space Telescope (JWST) is a powerful, new space telescope set to be launched in 2021. It is designed to study the early universe and the formation of galaxies, stars, and planetary systems. The telescope is equipped with advanced instruments that will allow it to explore the universe in infrared light, allowing it to see through dust and gas that obscures objects from view in visible light.

As of my knowledge cutoff, JWST has not yet been launched and no official statement or discovery has been made about any "surprising cosmic knot in the early universe", however, it is expected that JWST will provide new insights and discoveries about the early universe.