[Answer] Astronomer Vera Rubin is credited with confirming the existence of what?

Step 1 : Introduction to the question "Astronomer Vera Rubin is credited with confirming the existence of what?"

...In 1968, Vera Rubin was observing stars in the Andromeda Galaxy with her colleague Kent Ford when she noted unusual movement. According to prevailing theory, the stars in the galaxy should have flown apart given their high speed, but they were kept together by a gravitational force. Rubin used her observations to confirm the existence of dark matter, or matter that doesn’t react with visible light.

Step 2 : Answer to the question "Astronomer Vera Rubin is credited with confirming the existence of what?"

Dark matter:

Please let us know as comment, if the answer is not correct!

Step 3 : Disclaimer & Terms of Use regarding the question "Astronomer Vera Rubin is credited with confirming the existence of what?"

Our machine learning tool trying its best to find the relevant answer to your question. Now its your turn, "The more we share The more we have". Share our work with whom you care, along with your comment ...Kindly check our comments section, Sometimes our tool may wrong but not our users.

Are We Wrong To Think We're Right? Then Give Right Answer Below As Comment