A peek at the largest optical telescope in the world

The video provides an overview of the Very Large Telescope (VLT) located in the Chilean desert, highlighting its structure and operations. It explains the daily tasks of astronomers, including calibration and data analysis, and describes the process of observing the center of our galaxy, focusing on a supermassive black hole. The video concludes with future developments, such as the addition of the Vista telescope to enhance VLT's capabilities.

What is the mass of the supermassive black hole mentioned in the text?

What new addition is expected to increase the capacity of the VLT next year?