In the 1970s, astronomer Vera Rubin pointed her telescope at distant galaxies and discovered something impossible: they were spinning too fast to exist. Her observations revealed that 85% of all matter in the universe is completely invisible to us, launching the greatest mystery in modern cosmology. Hosted by Simplecast, an AdsWizz company. See https://pcm.adswizz.com

for information about our collection and use of personal data for

advertising.