Planetary nebula NGC 6563 with and without adaptive optics on the VLT - Adaptive optics corrects for turbulence on the line-of-sight in real-time by shooting a laser in the sky that looks like a star to the telescope and one of the telescope mirrors moves to keep that "star" focussed. It's wild

https://bit.ly/38ZeRs0 via /r/spaceporn https://bit.ly/3O2ZXQe