325K views · 12 reactions | When we talk about the enormity of the cosmos , it’s easy to toss out big numbers – but far more difficult to wrap our minds around just how large, how far, and how numerous celestial bodies really are. Join us for a cosmic journey to see the size of our Milky Way galaxy: https://go.nasa.gov/2UxkHIN | NASA - National Aeronautics and Space Administration | Facebook

When we leave our solar system and enter interstellar space, we're a far ways from home on Earth. But we're still within the Milky Way Galaxy! What IS a galaxy? Watch: https://youtu.be/Aeb4yoPRk9w | NASA - National Aeronautics and Space Administration