Galaxy Facts A galaxy is a massive, gravitationally bound system that consists of stars, stellar objects (such as brown dwarfs and neutron stars), nebulae, an interstellar medium of gas and dust,black holes, and an unknown component of dark matter. Examples of galaxies range from dwarfs with ...
For many more facts about the Milky Way, visit theGuide to Space, listen to theAstronomy Cast episodeon the Milky Way, or visit the Students for the Exploration and Development of Space atseds.org.
28. Situated at a distance 2.5 million light years away from the Earth,Andromeda Galaxyis the nearest major galaxy to the Milky Way. According to an estimation, the Andromeda galaxy contains nearly 1 trillion stars, more than twice of what we have in the Milky Way (200-400 billion stars)....
“The destruction of this planet would have no significance on a cosmic scale: to an observer in the Andromeda nebula, the sign of our extinction would be no more than a match flaring for a second in the heavens: and if that match does blaze in the darkness there will be none to mourn...