2.2M views · 43K reactions | Ever wondered how big the Universe really is?  We know the Universe is big, but exactly how large is it? And if it has been constantly expanding since the Big Bang, then how big is it now? Bend your mind around the truly massive scale of our cosmos with Dr Becky Smethurst. #YourCosmos | BBC Earth | Facebook

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