Astronomers were skeptical about dark matter — until

Astronomers were skeptical about dark matter — until Vera Rubin came along

She built a bulletproof case for exploring the concept.

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Noam Hassenfeld , Vera Rubin , Byrd Pinkerton , , நோம் ாஸ்ஸெண்பெல்த் , வேரா ரூபின் , பைர்ட் பிங்கர்டன் ,