10 Galaxies and Weird Facts | Astronomy Is Awesome
Andromeda Galaxy, 2.5 million light-years away from Earth. Credit: NASA, Hubble Space Telescope
NASA’s Astronomy Picture Of The Day – Moon Over Andromeda
Andromeda’s actual size…
Humility: Andromeda’s actual size, not accounting for the fact it is 2.5 BILLION LIGHT YEARS away, compared with the moon's 238,000 MILES away.
Andromeda Galaxy ~ a massive spiral, 2.5 million light-years away, over twice the diameter of our own Milky Way, it's the largest nearby galaxy. Its population of bright young blue stars lies along its sweeping spiral arms. (Spitzer Space Telescope)