Vera Rubin, who proved dark matter and was passed over for the Nobel

Andromeda's outer stars orbit as fast as inner stars, defying Newtonian predictions of slowing at the edges.

Visible stars represent only a small fraction of cosmic matter, like foam on a deep, heavy ocean.

Rubin confirmed flat rotation curves in sixty galaxies, proving dark matter accounts for eighty-five percent of matter.

Computer simulations show spiral galaxies would dissolve without the stabilizing force of invisible dark halos.

Rubin faced systemic barriers, including taping a paper skirt over a bathroom door at Palomar Observatory.

The Nobel Committee never awarded Rubin despite her discovery being a permanent fact of modern physics.