To many cosmologists, the best thing about neutron-star mergers is that these events scream into space an otherwise close-kept secret of the universe. Scientists combined the gravitational and ...

Our cosmos seems, at times, like one impossibly vast factory, just pumping out mysteries. The deeper we peer, the more we ...

If there is an absolute law in the universe, it’s that nothing can travel faster than the speed of light. Space is big, and ...

The mystery of the Hubble tension has deepened with the startling finding that the Coma Cluster of galaxies is 38 million ...

Vesto Slipher first observed that galaxies are moving away from us. Edwin Hubble later showed a relationship between galaxy distance and speed. Hubble's work relied heavily on Slipher's earlier data.

July Celebration to Mark 10th Anniversary of Gruber International Prize Program, Which Began with Cosmology Prize June 3, 2009, New York, New York — The recipients of the 2009 Cosmology Prize of the ...

New details from the Webb telescope indicate there might be a fundamental problem with our understanding of the universe. The spiral galaxy NGC 4258, imaged by the Hubble Space Telescope, measures ...

In physics, we have a bunch of constants that are used in models to explain how the world works. These are fixed numbers that we plug into equations along with our variables. For example, the ...