Tracy Slatyer is staring at the camera, smiling. There is a black board with equations written on in the background. Slatyer is wearing a black jacket and silver watch. Her light brown (or dark blonde) hair is pulled back in a ponytail.
Space

How did dark matter form the universe? This physicist has ideas

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At the age of 12, Tracy Slatyer felt sorry for a book. She read a newspaper article about how many […]