Henrietta Swan Leavitt they became an important part of the evidence that "spiral nebulae" are independent galaxies located far outside of our own Milky Way. Thus, Leavitt's discovery would forever change our picture of the universe, as it prompted Harlow Shapley to move our Sun from the center of the galaxy in the "Great Debate" and Edwin Hubble to move our galaxy from the center of the universe. Leavitt's discovery of a way to accurately measure distances on an inter-galactic scale, paved the way for modern astronomy's understanding of the structure and scale of the universe. The accomplishments of Edwin Hubble, the American
Twin Galaxies game arcades over four months, recording the high scores that he found on each game. On November 10, he opened his own arcade in Ottumwa, Iowa, naming it Twin Galaxies. On February 9, 1982, his database of records was released publicly as the Twin Galaxies National Scoreboard. Twin Galaxies became known as the official scoreboard, arranging contests between top players. Twin Galaxies' first event attracted international media attention for gathering the first teams of video-game stars. Top players in North Carolina and California were formed into state teams that faced off in a "California Challenges North Carolina All-Star Playoff", playing