What NASA Saw in a Grain-Sized Patch of Sky Will Break Your Brain - YouTube - The Secrets of the Universe - cosmology

The NASA/ESA/CSA James Webb Space Telescope has discovered at least 80 supernovae,a tenfold increase from before.They date back to the early universe.Only infrared capabilities can look back that far,as the light is too faint for standard optics to detect.Supernovae are transients,changing in brightness over time.To discover supernovae,the JWST team compared several images taken over a year apart,searching for sources of light that either appeared or vanished.*Cosmology is the study of the origins and structures of the universe.