WAS dark matter responsible for mass extinctions, geologic upheavals, which killed of the dinosaurs? Has football-shaped collections of stars called elliptical galaxies provided new insights into the connection between a galaxy and its black hole? Has the Planck space telescope offered a glimpse of what the universe looked like almost 14 billion years ago, when it was just 380,000 years old?
Three separate but independent studies might have provided answers to these questions.
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