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A black hole's secrets could hide in its dizzying light 'echoes'
Black hole light echoes are an extreme form of gravitational lensing. To measure the masses and spins of black holes, ...
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NASA telescope will reveal the universe in more than 100 colors
SPHEREx will explore the universe in 102 infrared colors, providing unprecedented insights into cosmic origins.
The ultimate cosmic question: How fast is the universe expanding?
Since the discovery of the acceleration, theorists have calculated that the universe will continue to expand faster and ...