PIX4638331: Evolution of our sky - End of cosmology - The sky seen from Earth today (left) and then in 5 billion years (the Sun has become a giant red star, the Earth has lost its water, the galaxy of Andromede collides with our galaxy), in 100 billion years, there is only one supergalaxy left in our sky; in 100 trillion years (100 million), the last stars are getting out. The night sky seen from Earth today (left), then seen in 5 billion years (sun has become a red giant star, water on earth is evaporated Andromeda galaxy is colliding Milky way). Third panel is 100 billion years later, there is only one giant galaxy in our sky. Last panel is 100 trillion years in the future, universe goes black, last stars burn out, Dixon, Don (b.1951) / Bridgeman Images