How Building a Black Hole for Interstellar Led to a Scientific Discovery

These guys are not pioneers in this field, "realistic" black hole rendering was done many times before them.

For example, a ring visible twice can be seen here:

http://www.spacetimetravel.org/filme/bsm1/bsm1-xe-640x480.mp...

Black hole warping light:

http://jila.colorado.edu/~ajsh/insidebh/schw.html

Other relativistic renders:

http://www.spacetimetravel.org/galerie/galerie.html

Sigh. Even the headline is a spoiler.