In astronomy, the interstellar medium (ISM) is the matter and radiation that exist in the space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, as well as dust and cosmic rays. It fills interstellar space and blends smoothly into the surrounding intergalactic space
The British Invasion was a movement of the 60s where musicians from the U.K. would come to the United States to perform and share their British culture. One of the most famous groups that was a part of the movement was the Beatles and they impacted pop music by bringing new sounds through their song writing
