A few decades ago, astronomers realized they had a problem: They could not find enough matter in the universe to account for all the space in between stars and galaxies. The missing mass begged the ...

Tens of thousands of years ago an aspiring artist picked up a piece of charcoal and drew an image of another early human being on the rocky wall of a cave. Across the millennia that followed people ...

The workers who pose for artists at historic organizations like the Art Students League say they are overworked and underpaid ...

A new model of the Universe suggests that modifying Newton's theory of gravity could do away with the need for dark matter. The model instead relies on an as-of-yet undiscovered form of gravity to ...

Astronomers have discovered a vast tendril of hot gas linking four galaxy clusters and stretching out for 23 million light-years, 230 times the length of our galaxy. With 10 times the mass of the ...

While the idea of dark matter was originally proposed to explain the structure of galaxies, one of its great successes was explaining the nature of the Universe itself. Features of the Cosmic ...

Two projects in JWST’s first observation cycle will probe the nature of dark matter. On Christmas morning of 2021, an Ariane 5 CEA rocket blasted off from Kourou, French Guiana. It carried with it the ...