Viewing a single comment thread. View all comments

s1ngular1ty2 t1_jd37zrr wrote

It's a 3D image of the stars/galaxies we have mapped from Earth. You are seeing it from the side. It's from the Sloan Digital Sky Survey.

https://www.youtube.com/watch?v=1RXpHiCNsKU

We can't map the entire sky from Earth because the Milky Way is in the way. It limits the angles we can look. That is why there is a big blank area in the middle.

1