By observing tiny ripples in spacetime called "gravitational waves" that propagate away from colliding black holes, ...

For one, it explains why the cosmos appears geometrically flat: It's so big that, despite its overall curvature, any patch of the universe will appear flat. It also explains why regions of the ...

Therapy dogs not only help reduce student stress but also ease feelings of loneliness—an effect that appears to be particularly pronounced for international students, new research from UBC ...

Einstein predicted that massive objects bend light as it passes through their gravitational field. This week, a new telescope ...

Mathematical equations have shaped our understanding of the universe, and these nine have played a key role in changing the world.

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Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have ...