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Jeremiah Ostriker, Astrophysicist, 1937-2025

The scientist played a key role in establishing that dark matter pervades the universe
Financial Times - 2d
WATCH: Meet the dog who knows more than 1,000 words

In 2011, astrophysicist Neil deGrasse Tyson visited Chaser, a dog who lived with a retired psychology professor in South Carolina.
ABC News - 2d