It's well established that the universe is expanding, but there's serious disagreement among scientists over how fast it's happening.

This enormous chain of hundreds of galaxies—a cosmic filament—is twisting through space 400 million light-years away ...

New data from major dark-energy observatories suggest the universe may not expand forever after all. A Cornell physicist calculates that the cosmos is heading toward a dramatic reversal: after ...

Discover seven unusual galaxies defying scientific predictions, from impossibly bright early universe objects to astrophysics ...

Humanity has reached the Moon, photographed black holes, and looked back to the birth of the universe — yet massive gaps ...

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The shape of the cosmos depends on a balance of two competing forces: the pull of gravity and the expansion driven by dark ...

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Today we are going to talk about cosmology and the fact that black holes were considered as an almost unbelievable idea. In the 30s, British astronomer Arthur ...

Black holes and dark matter are two of the universe’s deepest mysteries, and they may not be as unrelated as they seem. From primordial black holes to exotic particle interactions, extreme gravity ...