Astronaut Don Pettit aboard ISS captured the Milky Way Galaxy. The Milky Way is a barred spiral galaxy with a diameter between 150,000 and 200,000 light-years. It is estimated to contain 100-400 billion stars and more than 100 billion planets.

Credit: Don Pettit, NASA

Reference: Don Pettit’s Tweet
See earthview photo gallery: LiVEARTH

#LiVEARTH http://livearth.space/ #Earth #EarthFromSpace #overview #perspective