Which constellation is home to the supermassive black hole known as Sgr A?

The correct response, Sagittarius, is accurate because the supermassive black hole known as Sgr A* (Sagittarius A-star) is located at the center of our Milky Way galaxy, which is situated within the boundaries of the Sagittarius constellation. This region of the night sky is specifically associated with the densest area of the Milky Way, containing a high number of stars and other celestial phenomena.

Sag A* is a critical point of study in astrophysics as it provides insights into the dynamics of stars and gas in the galaxy's core, as well as the nature of black holes in general. The constellation itself is home to a number of other interesting astronomical objects, including star clusters and nebulae.

The other constellations mentioned are not linked to Sgr A*. Virgo contains the Virgo Cluster and other galaxies, Libra represents the scales and has no connection to our galaxy's core, and Scorpius is known for its bright stars and the prominent scorpion shape, but it is not the location of the Milky Way's supermassive black hole.